@@ Line 1: / Line 1: @@
 ==Overview==
-First, a transmission is a way of applying torque from an engine through a differential to a wheel, causing  forward (or reverse) motion of a standing body.
 This article will concern itself with the different types of transmissions used by General Motors, and their physical and mechanical properties.
+{{Note1}} Additional info is on the [http://www.crankshaftcoalition.com/wiki/Talk:General_Motors_transmissions '''discussion page'''] that has yet to be incorporated into this page.
 ==Types of transmissions==
@@ Line 28: / Line 28: @@
 ===Borg Warner OD wiring diagram===
 [[File:Od-wiringdiagrm.jpg]] <br style="clear:both"/>
-===Rebuilding the Borg Warner overdrive===
-*Article, [http://www.classictruckshop.com/clubs/earlyburbs/projects/t85n/rebuild.htm ''Rebuilding the Borg Warner Overdrive Unit'']
 ==Four speed manual transmission identification and description==
@@ Line 39: / Line 36: @@
 Image:Borgwarner.jpg‎|The '''Borg Warner''' has a 9 bolt cover.
 </gallery>
+===T-10 info===
+;See [http://www.crankshaftcoalition.com/wiki/Transmission_identification#T-10 T-10 info] at [[Transmission identification]]
 ===Muncie 4-speed===
+====Muncie 4-speed assembly/parts manual====
+*[[Media:Munciemanual.pdf|Muncie 4-speed manual transmission assemblies, gears & parts]]
 ====Identifying Muncie M20 series transmissions====
 The external differences between the three Muncie 4 speed transmissions can be deceiving. If the cover is removed, the pitch of the gears can be seen. In order to tell the difference between an M21 and M22 definitively, look at the helix angle on the gearset. M20 and M21 have a steeper pitch, where the M22 will have a less aggressive pitch. M22s are NOT straight-cut or 'spur gears'.
@@ Line 51: / Line 55: @@
 Put the transmission in 1st gear. Turn the input 10 times while counting how many times the output turns. If it turns 2.5 times, its an M20 (2.52 1st gear). If it turns 2.2 times, its an M21 or M22 (2.20 1st).
-If you determine it's a close ratio M21 or M22, remove the sidecover and look at the angle of the gear teeth (refer to photo above) to see if it's a M22 or not.
+If you determine it's a close ratio M21 or M22, remove the side cover and look at the angle of the gear teeth (refer to photo above) to see if it's a M22 or not.
 ====Muncie info from AutoGear:====
@@ Line 83: / Line 87: @@
 ==Five speed==
 ===GM T-5===
-<table border="1" cellpadding="2" cellspacing="0" height="658" width="863">
+  <table border="1" cellpadding="2" cellspacing="0" height="658" width="863">
      <tr>
-       <td bgcolor="#cccccc" height="34" width="10%">
+       <td bgcolor="#ccccff" height="34" width="10%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">BW
        Model</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="21%">
+       <td bgcolor="#ccccff" height="34" width="21%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">Original
        application</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="15%">
+       <td bgcolor="#ccccff" height="34" width="15%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">Engine</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="9%">
+       <td bgcolor="#ccccff" height="34" width="9%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">1st
        gear</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="9%">
+       <td bgcolor="#ccccff" height="34" width="9%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">2nd
        gear</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="8%">
+       <td bgcolor="#ccccff" height="34" width="8%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">3rd
        Gear</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="9%">
+       <td bgcolor="#ccccff" height="34" width="9%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">4th
        gear</font></b></center></td>
-       <td bgcolor="#cccccc" height="34" width="9%">
+       <td bgcolor="#ccccff" height="34" width="9%">
        <p></p><center><b><font color="#000000" face="Arial" size="-1">5th
        gear</font></b></center></td>
@@ Line 113: / Line 117: @@
        <font color="#000000" face="Arial" size="-1">1352-005</font></td>
        <td height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1984 - 86 Chevette</font></td>
+       <font color="#000000" face="Arial" size="-1">1984-'86 Chevette</font></td>
        <td height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">1.6 L4</font></td>
@@ Line 151: / Line 155: @@
        <font color="#000000" face="Arial" size="-1">1982 S10</font></td>
        <td height="27" width="15%">
-       <font color="#000000" face="Arial" size="-1">2.4 Diesel</font></td>
+       <font color="#000000" face="Arial" size="-1">2.4 diesel</font></td>
        <td height="27" width="9%">
        <p></p><center><font color="#000000" face="Arial" size="-1">4.03</font></center></td>
@@ Line 221: / Line 225: @@
        <font color="#000000" face="Arial" size="-1">1352-042</font></td>
        <td height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1984 - 85 S10</font></td>
+       <font color="#000000" face="Arial" size="-1">1984-'85 S10</font></td>
        <td height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">2.8 V6</font></td>
@@ Line 239: / Line 243: @@
        <font color="#000000" face="Arial" size="-1">1352-043</font></td>
        <td bgcolor="#ffffff" height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1984 - 85 S10</font></td>
+       <font color="#000000" face="Arial" size="-1">1984-'85 S10</font></td>
        <td bgcolor="#ffffff" height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">2.8 V6</font></td>
@@ Line 347: / Line 351: @@
        <font color="#000000" face="Arial" size="-1">1352-102</font></td>
        <td height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1985 - 86 Minivan</font></td>
+       <font color="#000000" face="Arial" size="-1">1985-'86 Minivan</font></td>
        <td height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">2.5 L4, 2.8 V6</font></td>
@@ Line 367: / Line 371: @@
        <font color="#000000" face="Arial" size="-1">1985 S10</font></td>
        <td height="27" width="15%">
-       <font color="#000000" face="Arial" size="-1">2.2 L4 Diesel</font></td>
+       <font color="#000000" face="Arial" size="-1">2.2 L4 diesel</font></td>
        <td height="27" width="9%">
        <p></p><center><font color="#000000" face="Arial" size="-1">3.76</font></center></td>
@@ Line 383: / Line 387: @@
        <font color="#000000" face="Arial" size="-1">1352-108</font></td>
        <td bgcolor="#ffffff" height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1985 - 86 S10</font></td>
+       <font color="#000000" face="Arial" size="-1">1985-'86 S10</font></td>
        <td bgcolor="#ffffff" height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">2.5 L4, 2.8 V6</font></td>
@@ Line 421: / Line 425: @@
        <font color="#000000" face="Arial" size="-1">1985 S10</font></td>
        <td height="27" width="15%">
-       <font color="#000000" face="Arial" size="-1">2.2 L4 Diesel</font></td>
+       <font color="#000000" face="Arial" size="-1">2.2 L4 diesel</font></td>
        <td height="27" width="9%">
        <p></p><center><font color="#000000" face="Arial" size="-1">3.76</font></center></td>
@@ Line 437: / Line 441: @@
        <font color="#000000" face="Arial" size="-1">1352-145</font></td>
        <td height="27" width="21%">
-       <font color="#000000" face="Arial" size="-1">1985 - 86 S10</font></td>
+       <font color="#000000" face="Arial" size="-1">1985-'86 S10</font></td>
        <td height="27" width="15%">
        <font color="#000000" face="Arial" size="-1">2.5 L4, 2.8 V6</font></td>
@@ Line 503: / Line 507: @@
        <p></p><center><font color="#000000" face="Arial" size="-1">1.00</font></center></td>
        <td height="27" width="9%">
-       <p></p><center><font color="#000000" face="Arial" size="-1">0.73</font></center></td>
+       <p></p><center><font color="#000000" face="Arial" size="-1">0.73</font></center></td></tr>
-    </tr>
+</table><br>
-  </table>
+===T-5 info and resources===
+*[http://www.autogear.net/AftermarketHome1.html AGE] OE parts for Tremec T45/T5 transmissions
+*[http://www.inliners.org/Jack/t5_page.html Inliners tech web page for T5 transmissions]
+*[http://www.moderndriveline.com/ Modern Driveline's home page with T5 tech links]
+*[http://www.stovebolt.com/techtips/t5tranny.htm Stovebolt.com's web page for T5 transmissions]
+*[http://www.garage-scene.com/t5-into-ag-body/ Garage Scene web page] great T5 identification information
+*[http://www.fordmuscle.com/archives/2000/09/t5swap/index.php Ford Muscle's T5 web page]
+*[http://pomoforacing.com/tech/T5Rebuild2002.pdf PoMoFoRacing tech web page link on rebuilding a T5 transmission]
+*[http://www.5speeds.com/t5/index.html 5speeds.com index]
+*[http://www.moderndriveline.com/Technical_Bits/t5_history.htm Modern Driveline T5 info]
+*[http://www.ddperformance.com D&D Performance]
+*[http://www.hanlonmotorsports.com Hanlon Motorsports]
+*[http://www.nationaldrivetrain.com National Drivetrain]
+*[http://www.ttcautomotive.com/onlineorder/product.asp TTC (Tremec)]
+*[http://www.jalopyjournal.com/forum/showthread.php?t=169265 HAMB links]
+*[http://www.flatheadv8.org/t5-swap.htm T5 swap info] from flathead V8.org
+*[http://www.flatheadv8.org/ernie/ernie-t5.htm] also from flathead V8.org
+*[http://www.hotrodders.com/forum/t5-trans-question-172815-2.html Hotrodders thread]
+*[http://www.hemmings.com/mus/stories/2004/07/01/hmn_feature25.html Hemmings info]
+*[http://www.carcraft.com/techarticles/ccrp_1206_600_dollar_five_speed_swap/index.html The $600 Five-Speed Swap], Car Craft, June, 2012
+*[http://www.crankshaftcoalition.com/wiki/Transmission_identification#Ford_T-5 Ford T-5] CC wiki page
+===NV3500===
+* 1988–1998 Chevrolet & GMC CK (GMT400 platform) with 4.3 liter V6 and 5.0 liter V8 and 5.7 liter V8. NOTE - some transmissions for the 1988-'92 GMT400 were branded as the MG290 (1987 production year - usually found with the early 1988 GMT400 truck), HM290, 5LM60 (both early (1989-'90) and late version (1991-'92) - late version manufactured by New Venture Gear)
+* 1999–2006 [[GMC Sierra]] (GMT800) 1500 and 2500LD
+* 1993–2003 GM S (S10 etc.) trucks with 4.3L V6
+* 1994–2001 [[Dodge Ram]] 1500
+* 1994–1995 [[Dodge Ram]] 2500 Light Duty
+* 1994-2004 [[Dodge Dakota]]
+'''Wide Ratio Gearing Option in Dodge 1500 & GM Full-size Light Trucks:'''
+{| class=wikitable
+!1
+!2
+!3
+!4
+!5
+!R
+|-
+|4.02
+|2.32
+|1.40
+|1.00
+|0.73
+|3.55
+|}
+'''Close Ratio GM S/T Small Trucks & 2500 Light Duty Dodge Ram Truck Gearing:'''
+{| class=wikitable
+!1
+!2
+!3
+!4
+!5
+!R
+|-
+|3.49
+|2.16
+|1.40
+|1.00
+|0.73
+|3.55
+|}
 ==Six speed manual==
@@ Line 514: / Line 581: @@
 ===German ZF S6-40===
-Starting with the 1988-'96 Y-body (Corvette), a German ZF 6-speed was used, designated S6-40.  It was stout and reliable, but its limited use and short production run didn't support wide aftermarket solutions.  In fact GM didn't even stock service parts for the transmissions, instead opting to provide remanufactured units instead of repairing them.  Although it ended up costing GM less in the long run, it was a concept not warmly received by the public.  Early models were rated for 400 ft-lbs, and later models were rated to 450 ft-lbs.
+Starting with the 1988-'96 Corvette, a German ZF 6-speed was used, designated S6-40.  It was stout and reliable, but its limited use and short production run didn't give rise to wide aftermarket support. In fact GM didn't even stock service parts for the transmissions, instead opting to provide remanufactured units instead of repairing them.  Although it ended up costing GM less in the long run, it was a concept not warmly received by the public.  Early models were rated for 400 ft/lbs, and later models were rated to 450 ft/lbs.
 ZF 6-speed ratios are as follows:
@@ Line 529: / Line 596: @@
 ===Borg Warner/Tremec T56===
-Starting with the 1992/1993 GM F-body (Camaro, Firebird, Trans Am) the six speed was a Borg Warner-designed, Tremec-built T56 transmission. Although the basic design, case, and internal operation were the same, three different ratio gear sets were available in GM applications. In 1993, F-body cars were equipped with two optional rear axle ratios: 2.73 and 3.23. Beginning in 1994, all T56 cars used the same ratio gear set regardless of rear axle ratio. 1992-1993 T56s with the lower gear sets had a slightly lower torque capacity in the 350 lb-ft range while 1994-later (high) gear sets reduced the side loads on the case and were rated to 450 lb-ft. T56 use continued like this until 1997 when it also started being used in the Y-body (Corvette) as a rear-mounted transaxle, and continued on in F-bodies behind the LS1 until the end of their production.
+Starting with the 1992-1993 GM F-body (Camaro, Firebird, Trans Am), the six speed was a Borg Warner-designed, Tremec-built T56 transmission. Although the basic design, case, and internal operation were the same, three different ratio gear sets were available in GM applications. In 1993, F-body cars were equipped with two optional rear axle ratios: 2.73 and 3.23. Beginning in 1994, all T56 cars used the same ratio gear set regardless of rear axle ratio. 1992-1993 T56 with the lower gear sets had a slightly lower torque capacity in the 350 lb-ft range while 1994-later (high) gear sets reduced the side loads on the case and were rated to 450 lb-ft. T56 use continued like this until 1997 when it also started being used in the Y-body (Corvette) as a rear-mounted transaxle, and continued on in F-bodies behind the LS1 until the end of their production.
-Of note is the fact that all T56 transmissions share an interchangeable main case; even those found in Holdens, Fords, Vipers, and Aston Martins. What differs is the front adapter plate, tail shaft housing, shifter, and input/output shafts. Internally, there were some interchangeable differences, like the type of shift forks and synchronizers used, but for the most part all T56s are built on the same stout center section. Gear ratios are as follows:
+Of note is the fact that all T56 transmissions share an interchangeable main case; even those found in Holdens, Fords, Vipers, and Aston Martins. What differs is the front adapter plate, tail shaft housing, shifter, and input/output shafts. Internally, there were some interchangeable differences, like the type of shift forks and synchronizers used, but for the most part all T56 transmissions are built on the same stout center section.
+====T56 general info====
+{| class=wikitable
+!Tag ID
+!Application
+!Torque Rating
+!1st
+!2nd
+!3rd
+!4th
+!5th
+!6th
+!Rev
+!Input Splines
+!Output Splines
+|-
+|1386-000-003||1992 Dodge Viper||330||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|1386-000-005||1993-1995 Dodge Viper||550||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|1386-000-006||1993 Camaro/Firebird w/2.73 final drive "M28"||350||3.36:1||2.07:1||1.35:1||1.00:1||0.80:1||0.62:1||3.28:1||26||27
+|-
+|1386-000-007||1993 Camaro/Firebird w/3.23 final drive "M29"||400||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||26||27
+|-
+|1386-000-009||1994-1995 Camaro/Firebird||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-011||GM Aftermarket||450||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||26||27
+|-
+|1386-000-012||Mustang 5.0 Aftermarket||450||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||10||31
+|-
+|1386-000-013||Holden||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-014||1996-2002 Dodge Viper||||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|1386-000-016||1996-1997 Camaro/Firebird||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-017||1998 Camaro/Firebird||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-018||1996-2002 Dodge Viper||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|1386-000-019||||390||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||||
+|-
+|1386-000-020||1999-2002 Camaro/Firebird||450|||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-021||Aston Martin||450||2.66:1||1.78:1||1.30:1||1.00:1||0.79:1||0.63:1||2.90:1||26||30
+|-
+|1386-000-022||Holden Commodore||350||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-023||Corvette C5||375||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|1386-000-024||||375||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||||
+|-
+|1386-000-025||Corvette Z06 C5||385||2.97:1||2.07:1||1.43:1||1.00:1||0.84:1||0.56:1||2.90:1||26||27
+|-
+|TNET-1077||||415||2.97:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||||
+|-
+|TNET-1247||Dodge Viper||450||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|TUET-1259||4.6 Mustang Aftermarket w/mech speedo||450||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||10||31
+|-
+|TUET-1260||4.6 Mustang Aftermarket w/elec speedo||450||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||10||31
+|-
+|TUET-1452||Chevrolet Corvette||370||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|TUET-1453||Chevrolet Corvette||370||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||27
+|-
+|TUET-1576||Aston Martin||415||2.66:1||1.78:1||1.30:1||1.00:1||0.79:1||0.63:1||2.90:1||26||30
+|-
+|TUET-1660||||350||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||||27
+|-
+|TUET-1694||2003-2004 Mustang Cobra||450||2.66:1||1.78:1||1.30:1||1.00:1||0.79:1||0.63:1||2.90:1||26||31
+|-
+|TUET-1806||Dodge Viper SRT-10||550||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|TUET-2022||Cadillac CTS-V||||2.97:1||2.07:1||1.43:1||1.00:1||0.84:1||0.56:1||2.90:1||||
+|-
+|TUET-2060||Mustang Cobra||450||2.97:1||2.07:1||1.43:1||1.00:1||0.80:1||0.62:1||3.28:1||10||31
+|-
+|TUET-2062||Dodge Viper||550||2.66:1||1.78:1||1.30:1||1.00:1||0.74:1||0.50:1||2.90:1||26||30
+|-
+|TUET-2066||Pontiac GTO/Holden Monaro||||2.97:1||2.07:1||1.43:1||1.00:1||0.84:1||0.56:1||2.90:1||26||27
+|-
+|TUET-5044||Cadillac CTS-V||||2.97:1||2.07:1||1.43:1||1.00:1||0.84:1||0.56:1||2.90:1||||
+|-
+|TUET-6450||T-56 Ford N/A XR6||||3.35:1||2.07:1||1.35:1||1.00:1||0.80:1||0.63:1||||23||31
+|-
+|TUET-7477||T-56 Magnum Chevy Aftermarket||||2.66:1||1.78:1||1.30:1||1.00:1||0.80:1||0.63:1||||26||27
+|-
+|TUET-7484||T-56 Magnum Ford Aftermarket||||2.66:1||1.78:1||1.30:1||1.00:1||0.80:1||0.63:1||||10||31
+|-
+|TUET-8274||T-56 Magnum Ford Aftermarket||||2.97:1||2.10:1||1.46:1||1.00:1||0.74:1||0.50:1||||10||31
+|-
+|TUET-8277||T-56 Magnum Chevy Aftermarket||||2.97:1||2.10:1||1.46:1||1.00:1||0.74:1||0.50:1||||26||27
+|}
 ====T56 transmission ratios- 1993 F-body with 2.73:1 axle:====
@@ Line 582: / Line 743: @@
 ===NV5600===
-Designed by New Venture, this stout truck six speed is up to the task of living behind engines like the Duramax and 8100 Vortec. For obvious reasons it has little application in hot rods due to its huge size, excessive weight, and truck-like gear ratios.
+[[File:Nv5600 dimens1.jpg]]<table style="float: right;" border="1" cellpadding="2" cellspacing="0"><tr>
+          <td colspan="2" bgcolor="#FFf8dc" align = "center"><b>NV5600<br>Gear Ratio</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;1st</b></td>
+          <td><b>5.63</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;2nd</b></td>
+          <td><b>3.38</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;3rd</b></td>
+          <td><b>2.04</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;4th</b></td>
+          <td><b>1.39</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;5th</b></td>
+          <td><b>1.00</b></td>
+        </tr>
+        <tr>
+          <td><b>&nbsp;&nbsp;6th</b></td>
+          <td><b>0.73</b></td>
+        </tr>
+        <tr>
+          <td>
+            <center><b>R</b>
+            </center>
+          </td>
+          <td><b>5.63</b></td>
+        </tr>
+      </table>
 [[File:NV5600.jpg|frame|left|NV5600]]
+Designed by New Venture, this stout truck six speed is up to the task of living behind engines like the Duramax and 8100 Vortec. It has a limited application for use in hot rods due to its huge size, excessive weight, and truck-like gear ratios.
+;There are two versions of the NV5600<nowiki>:</nowiki>
+*The Ram version is rated for 550 lb-ft torque
+*A HD version for larger trucks is rated for 650 lb-ft torque
 <br style="clear:both"/>
 ==Automatic transmissions==
+'''GM automatic transmission gear ratios'''
+<table border="5" cellpadding="5" cellspacing="0" height="15" width="500">
+<tr><td></td><td><b>1st </b></td><td><b>2nd </b></td><td><b>3rd </b></td><td><b>4th</b> </td><td><b>Reverse</b></td></tr>
+<tr><td>Powerglide</td><td>1.76</td><td>1.00</td><td></td><td></td><td>1.76</td></tr>
+<tr><td>T-350</td><td>2.52</td><td>1.52</td><td>1.00</td><td></td><td>1.93</td></tr>
+<tr><td>T-400</td><td>2.48</td><td>1.48</td><td>1.00</td><td></td><td>2.00</td></tr>
+<tr><td>2004R</td><td>2.74</td><td>1.57</td><td>1.00</td><td>0.67</td><td>2.07</td></tr>
+<tr><td>700R4</td><td>3.06</td><td>1.62</td><td>1.00</td><td>0.70</td><td>2.29</td></tr>
+<tr><td>4L60E</td><td>3.06</td><td>1.62</td><td>1.00</td><td>0.70</td><td>2.29</td></tr>
+<tr><td>4L80E</td><td>2.48</td><td>1.48</td><td>1.00</td><td>0.75</td><td>2.08</td>
+</table>
+<br><br>
+<table style="border-collapse: collapse" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%"><tr>
+         <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; bgcolor=" bgcolor="#CCCCFF" height="20" width="100%">
+    <p align="center">
+    <font color="#000000" size=“2”><b>GM RWD Non-Electronic Transmissions</b></font></p></td>
+    </tr></table>
+<table style="border-collapse: collapse" bgcolor="#FFF8DC" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+    <font size=“2”><b>Earlier transmissions</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;1946-'73: See '''[[General Motors transmissions#Early GM automatic transmissions|Early GM automatic transmissions]]'''</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>T-180</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1969-'79</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>T-180C</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1980-up electronic torque converter lock-up (TCC)</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>T-200</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1976-'80</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>T-200C</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1981-'87 electronic torque converter lock-up (TCC)</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>
+      T-350</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1969-'80</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>
+      T-350C</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1981-'86 lock-up torque converter (TCC)</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>T-400 </b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1964-'98 electric kick down; renamed 3L80 </font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>2004R</b></font><b></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Overdrive 1981-'90</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>700R4</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Overdrive 1981-'92 electronic torque converter lock-up (TCC); renamed 4L60 during the 1990 model year</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>A44DE</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Overdrive 1992-up lock-up torque converter (TCC) GEO Tracker</font></td>
+    </tr>
+</table><table style="border-collapse: collapse" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+  <tr>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; bgcolor=" bgcolor="#CCCCFF" height="20" width="100%">
+    <p align="center">
+      <font color="#000000" size=“2”>&nbsp;<b> GM RWD Computer
+      Controlled Transmissions</b></font></p></td>
+    </tr></table>
+<table style="border-collapse: collapse" bgcolor="#FFF8DC" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+    <font size="5">&nbsp;</font><b><font size=“2”>4L30E</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1990-up</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>4L60E (also 4L65E, 4L70E)</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1993-up; 1996-present has a bolt-on bellhousing</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>
+L80E</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1991-up full size trucks only (includes Hummer H1, Rolls-Royce, and Jaguar automobiles)</font></td>
+  </tr>
+   <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>5L40E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1999-up (5-speed) Cadillac Catera and CTS, late 2006-2010 Pontiac Solstice and Saturn Sky</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”></font><font size=“2”><b>
+L80E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Electronic overdrive 2006-up (6-speed) initially in Corvette, Cadillac XLR-V and Cadillac STS-V</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”></font><font size=“2”><b>
+L90E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 2005-up (6-speed) Cadillac STS</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>Allison 1000/2000</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 2000-up (5-speed) full size trucks only</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>JR403E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1988-up</font></td>
+  </tr>
+  </table><table style="border-collapse: collapse" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+  <tr>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; bgcolor=" bgcolor="#CCCCFF" height="20" width="100%">
+    <p align="center">
+      <font color="#000000" size=“2”>&nbsp;<b> GM FWD
+      Non-Electronic Transmissions</b></font></p></td>
+    </tr></table>
+<table style="border-collapse: collapse" bgcolor="#FFF8DC" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+    <font size=“2”><b>T-125</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1980-'81</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b>
+      <font size=“2”>T-125C</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;3-speed 1982-up electronic controlled lock-up torque converter (TCC)</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>T-325</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1979-'81 (GM E platform (Eldorado, Toronado, Riviera) and K platform 1980-'85 (Seville)</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>T-3254L</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Overdrive 1982-'85 electronic controlled lock-up torque converter (TCC); GM E and K platform</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>T-425</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1966-'78 (electric passing gear - THM400 derivative) - GM E platform automobiles (Oldsmobile Toronado, Cadillac Eldorado 1967-'78) incl. GMC motorhome</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>440T4</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Overdrive 1985-'92 electronic controlled lock-up torque converter (TCC)</font></td>
+  </tr>
+   <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>A131L</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1984-up Geo Prizm and Nova</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>F3A</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1985-up Geo Storm, Spectrum &amp; Pontiac Sunburst</font></td>
+  </tr>
+  </table><table style="border-collapse: collapse" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+  <tr>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; bgcolor=" bgcolor="#CCCCFF" height="20" width="100%">
+    <p align="center">
+      <font color="#000000" size=“2”>&nbsp;<b> GM FWD
+      Computer Controlled Transmissions</b></font></p></td>
+    </tr></table>
+<table style="border-collapse: collapse" bgcolor="#FFF8DC" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%">
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+    <font size=“2”><b>A210</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;3-speed 1985-up Geo Metro</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>A240E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Underdrive 1985-up Geo Prizm and Nova</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>4T40E/4T45E</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1995-up Cavalier, Sunfire, Achieva and Cutlas</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>4T60E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1991-up</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <b><font size=“2”>
+T65E</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1997-up</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>4T80E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1993-up Northstar</font></td>
+  </tr>
+   <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>JF403E</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1990-up Geo Storm</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>TAAT</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Electronic overdrive 1991-up Saturn S-Type</font></td>
+  </tr>   <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%">
+    <p align="center">
+      <font size=“2”><b>AF23-5/AF33-5</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Electronic 5-speed 2002-up Saturn Vue w/V6 and 2003-up Saturn Ion</font></td>
+  </tr>
+   </table>
 ===Hydramatic===
 The history of the Hydramatic transmission began back in 1932, when it was introduced by Cadillac as the "shiftless transmission". For more historical information, see [http://en.wikipedia.org/wiki/Hydramatic Hydramatic transmission] at Wikipedia. The scope of this article is mainly centered around the transmissions of the '60s to present date. However, if there is interest in prior years it can certainly be included.
@@ Line 602: / Line 1,073: @@
 For all intents and purposes the Turboglide is a 3 speed automatic with no apparent shift points. The 1958 and later Turboglide replaced the cone clutch with the more common and durable plate clutches. This resolved the reliability problems- but the image of a problematic transmission was cast.
 <br><br>
-The 1957 trans is visually different from the later trans in that it has a pair of cast transmission mounts on its bell housing: large flat surfaces cast at 45 degrees from the horizontal on the underside of the bellhousing. This is because the 1955-'57 Chevys had a perimeter frame and leaf rear springs. These had a 3 point engine/trans mounting system that required a single front engine mount and 2 bellhousing mounts. The 1957 trans is unique in that it also has a long extension housing (tail shaft housing) and a drain plug that the later trans do not. This makes it fairly easy to identify.
+The 1957 trans is visually different from the later trans in that it has a pair of cast transmission mounts on its bellhousing: large flat surfaces cast at 45 degrees from the horizontal on the underside of the bellhousing. This is because the 1955-'57 Chevys had a perimeter frame and leaf rear springs. These had a 3 point engine/trans mounting system that required a single front engine mount and 2 bellhousing mounts. The 1957 trans is unique in that it also has a long extension housing (tail shaft housing) and a drain plug that the later trans do not. This makes it fairly easy to identify.
 <br><br>
-The 1958 and later Turboglides have a very short tail shaft, no mounts on the bell housing and no drain plug in the pan. All of the Turboglide trannys function the same with only detail changes between them to improve reliability.
+The 1958 and later Turboglides have a very short tail shaft, no mounts on the bellhousing and no drain plug in the pan. All of the Turboglide trannys function the same with only detail changes between them to improve reliability.
 <br><br>
 They all have a variable pitch (angle of incidence) stator in the center of the torque converter that changes the torque multiplication when the angle is changed. This feature gave the trans the feel of having a 'passing gear' when the throttle was fully depressed- causing he engine RPM to rise by 500-800. This feature could be found in some of the later GM transmissions and was discontinued at the end of the 1970s.
 <br><br>
-I do not know the torque ratings for these transmissions- but they were mounted behind the 315HP 348ci engine in full size Chevys (4500 lbs.) and survived. These are most like a present day hydraulic version of the AUDI/VW DSG dual clutch manual tranny in that more that one 'gear' is engaged at the same time: DSG- 2 gears, Turboglide- 3 gears.
+These transmissions were mounted behind the 315HP 348ci engine in full size Chevys (4500 lbs.) and survived. These are most like a present day hydraulic version of the AUDI/VW DSG dual clutch manual tranny in that more that one 'gear' is engaged at the same time: DSG- 2 gears, Turboglide- 3 gears.
 <br><br>
-The Turboglide as well as most of the other GM automatics of the time were phased out in favor of the TH350 and TH400 to reduce complexity and cost and to improve performance and reliability/durability.
+The Turboglide as well as most of the other GM automatics of the time were phased out in favor of the T-350 and T-400 to reduce complexity and cost and to improve performance and reliability/durability.
 </Blockquote>
 ==General Identification==
@@ Line 618: / Line 1,089: @@
 [[Image:Pan_id.jpg‎]]
-{| style="background:yellow"
+{| border="1" cellpadding="2" cellspacing="0" bgcolor= "#FFF8DC"
-! Image Number !! Transmission(s) !! Pan Bolts
+! bgcolor="#CCCCFF"|Image Number !!bgcolor="#CCCCFF"| Transmission(s) !!bgcolor="#CCCCFF"| Pan Bolts
 |-
-! 1
+!bgcolor="#CCCCFF"| 1
 | Aluminum Powerglide
 | align = "center" | 14
 |-
-! 2
+!bgcolor="#CCCCFF"| 2
-| TH200 (Metric), TH200C (Metric)
+| T-200 (Metric), T-200C (Metric)
 | align = "center" | 11
 |-
-! 3
+! bgcolor="#CCCCFF"|3
-| TH250, TH250C, TH350, TH350C, TH375B
+| T-250, T-250C, T-350, T-350C, T-375B
 | align = "center" | 13
 |-
-! 4
+!bgcolor="#CCCCFF"| 4
-| TH375C, TH400, TH475, 3L80, 3L80HD
+| T-375C, T-400, T-475, 3L80, 3L80HD
 | align = "center" | 13
 |-
-! 5
+! bgcolor="#CCCCFF"|5
-| TH200-4R
+| 2004R
 | align = "center" | 16
 |-
-! 6
+!bgcolor="#CCCCFF"| 6
-| TH700-4R, 4L60, 4L60E
+| 700R4, 4L60, 4L60E
 | align = "center" | 16
 |-
-! 7
+!bgcolor="#CCCCFF"| 7
 | 4L80E
 | align = "center" | 17
 |}
-{{Note1}}Be careful not to mistake a TH250 for a TH350. The TH250 looks almost identical to the TH350 externally- same size, same oil pan. But unlike the TH350, it has a band adjuster stud and lock nut on the passenger side of the case near the cooler lines.
+{{Note1}}Be careful not to mistake a T-250 for a T-350. The T-250 looks almost identical to the T-350 externally- same size, same oil pan. But unlike the T-350, it has a band adjuster stud and lock nut on the passenger side of the case near the cooler lines, similar in design to the Powerglide. The 1979-'84 T-250C used an oil pan with an X-shaped stamped rib (T-350 oil pan is smooth). Usually found in 1974-'75 Chevrolet Vega/Monza (including H-body clones), Nova, Camaro when coupled to the Vega 4 or 250 inline six. Reintroduced in 1979 as an option for GM A, B, F, and G-bodies in response to the failure rate of the T-200 when used behind anything other than a 4 cylinder (coupled to the Buick V6 3800 engine or Chevrolet 90 degree V6 exc. 4.3L) until 1984 (same as the 1974-'75 design but incorporating a lockup torque converter (same as T-350C), a lightened sunshell with 3 or 6 drilled holes (sometimes used in performance applications to decrease ET due to its lower rotating mass), low/reverse piston (with 8 cutouts), and auxillary valvebody (shared with the T-350C). T-250C mostly found in G-bodies (third generation F-bodies came with the T-200C or 700R4) and some B-bodies until the 1984 model year when it was last optioned.
 ===Transmission dimensions===
+[[File:Dimensions.jpg|center]]
-[[File:At dimensions drawing.gif]]
 *Dimension "A" is the overall transmission length and varies with the length of the extension housing used.
@@ Line 661: / Line 1,131: @@
 *Dimension "D" is the distance between the center of the mounting bolts - this is the "width" of the mounting pad.
 *Dimension "E" is the width of the transmission at the bellhousing and combined with dimension "B", helps you roughly compare the size of the various transmissions.
+<BR><BR>
-<table id="table2" border="1" width="91%">
+<table id="table2" border="1" cellpadding="2" cellspacing="0" width="91%">
-	<tr>
+	<tr bgcolor="#CCCCFF">
 		<td width="120">'''Transmission'''</td>
 		<td align="center" width="70">'''A'''</td>
@@ Line 673: / Line 1,143: @@
 	</tr>
 	<tr>
-		<td width="120">Powerglide</td>
+		<td width="120">'''Powerglide'''</td>
-		<td align="center" width="70">25 <sup>23</sup>/<sub>64</sub>"</td>
+		<td align="center" width="70">25-23/64"</td>
-		<td align="center" width="64">16 <sup>5</sup>/<sub>16</sub>"</td>
+		<td align="center" width="64">16-5/16"</td>
-		<td align="center" width="71">20 <sup>9</sup>/<sub>16</sub>"</td>
+		<td align="center" width="71">20-9/16"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">19"</td>
 		<td align="left" width="285">Short shaft</td>
 	</tr>
 	<tr>
-		<td width="120">Powerglide</td>
+		<td width="120">'''Powerglide'''</td>
-		<td align="center" width="70">27 <sup>9</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">27-9/16"</td>
-		<td align="center" width="64">16 <sup>5</sup>/<sub>16</sub>"</td>
+		<td align="center" width="64">16-5/16"</td>
-		<td align="center" width="71">20 <sup>9</sup>/<sub>16</sub>"</td>
+		<td align="center" width="71">20-9/16"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">19"</td>
 		<td align="left" width="285">Long shaft</td>
 	</tr>
 	<tr>
-		<td width="120">TH350</td>
+		<td width="120">'''T-350'''</td>
-		<td align="center" width="70">27 <sup>11</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">27-11/16"</td>
-		<td align="center" width="64">21 <sup>5</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">21-5/8"</td>
-		<td align="center" width="71">20 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">20-3/8"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">19 <sup>1</sup>/<sub>8</sub>"</td>
+		<td align="center" width="54">19-1/8"</td>
-		<td align="left" width="285">6" Extension housing</td>
+		<td align="left" width="285">6" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH350</td>
+		<td width="120">'''T-350'''</td>
-		<td align="center" width="70">30 <sup>11</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">30-11/16"</td>
-		<td align="center" width="64">21 <sup>5</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">21-5/8"</td>
-		<td align="center" width="71">20 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">20-3/8"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">19 <sup>1</sup>/<sub>8</sub>"</td>
+		<td align="center" width="54">19-1/8"</td>
-		<td align="left" width="285">9" Extension housing</td>
+		<td align="left" width="285">9" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH350</td>
+		<td width="120">'''T-350'''</td>
-		<td align="center" width="70">33 <sup>27</sup>/<sub>32</sub>"</td>
+		<td align="center" width="70">33-27/32"</td>
-		<td align="center" width="64">21 <sup>5</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">21-5/8"</td>
-		<td align="center" width="71">20 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">20-3/8"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">19 <sup>1</sup>/<sub>8</sub>"</td>
+		<td align="center" width="54">19-1/8"</td>
-		<td align="left" width="285">12" Extension housing</td>
+		<td align="left" width="285">12" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH400/3L80</td>
+		<td width="120">'''T-400/3L80'''</td>
-		<td align="center" width="70">28 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="70">28-3/8"</td>
-		<td align="center" width="64">24 <sup>5</sup>/<sub>16</sub>"</td>
+		<td align="center" width="64">24-5/16"</td>
-		<td align="center" width="71">26 <sup>15</sup>/<sub>16</sub>"</td>
+		<td align="center" width="71">26-15/16"</td>
-		<td align="center" width="53">4 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">4-1/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">4" ("C") Short extension housing</td>
+		<td align="left" width="285">4" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH400/3L80</td>
+		<td width="120">'''T-400/3L80'''</td>
-		<td align="center" width="70">33 <sup>27</sup>/<sub>32</sub>"</td>
+		<td align="center" width="70">33-27/32"</td>
-		<td align="center" width="64">24 <sup>5</sup>/<sub>16</sub>"</td>
+		<td align="center" width="64">24-5/16"</td>
-		<td align="center" width="71">27 <sup>15</sup>/<sub>16</sub>"</td>
+		<td align="center" width="71">27-15/16"</td>
-		<td align="center" width="53">4 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">4-1/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">9" ("D") Medium extension housing</td>
+		<td align="left" width="285">9" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH400/3L80</td>
+		<td width="120">'''T-400/3L80'''</td>
-		<td align="center" width="70">37 <sup>7</sup>/<sub>8</sub>"</td>
+		<td align="center" width="70">37-7/8"</td>
-		<td align="center" width="64">24 <sup>5</sup>/<sub>16</sub>"</td>
+		<td align="center" width="64">24-5/16"</td>
-		<td align="center" width="71">27 <sup>21</sup>/<sub>32</sub>"</td>
+		<td align="center" width="71">27-21/32"</td>
-		<td align="center" width="53">1 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">1-3/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">13" Long extension housing</td>
+		<td align="left" width="285">13" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH700R4/4L60</td>
+		<td width="120">'''700R4/4L60'''</td>
-		<td align="center" width="70">30 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="70">30-3/4"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
-		<td align="center" width="71">22 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="71">22-1/2"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
 		<td align="left" width="285">All, except Corvette</td>
 	</tr>
 	<tr>
-		<td width="120">TH700R4/4L60</td>
+		<td width="120">'''700R4/4L60'''</td>
-		<td align="center" width="70">29 <sup>7</sup>/<sub>8</sub>"</td>
+		<td align="center" width="70">29-7/8"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
-		<td align="center" width="71">22 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="71">22-1/2"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
 		<td align="left" width="285">Corvette, 1982-'92</td>
 	</tr>
 	<tr>
-		<td width="120">TH700R4/4L60</td>
+		<td width="120">''' 700R4/4L60'''</td>
-		<td align="center" width="70">29 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="70">29-1/2"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
-		<td align="center" width="71">22 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="71">22-1/2"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">With TH350 6" extension housing</td>
+		<td align="left" width="285">With T-350 6" extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH700R4/4L60</td>
+		<td width="120">''' 700R4/4L60'''</td>
-		<td align="center" width="70">30 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="70">30-1/2"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
 		<td align="center" width="71">28"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">With extension housing 24214689 and
+		<td align="left" width="285">'''(1)''' Using mount on extension housing p/n 8673406 (old p/n 24214689)</td>
-		using mount on extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">TH200R4</td>
+		<td width="120">'''2004R'''</td>
-		<td align="center" width="70">27 <sup>11</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">27-11/16"</td>
 		<td align="center" width="64">n/a</td>
 		<td align="center" width="71">27"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">19 <sup>1</sup>/<sub>8</sub>"</td>
+		<td align="center" width="54">19-1/8"</td>
 		<td align="left" width="285">Integral extension housing</td>
 	</tr>
 	<tr>
-		<td width="120">4L60E</td>
+		<td width="120">'''4L60E'''</td>
-		<td align="center" width="70">30 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="70">30-3/4"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
-		<td align="center" width="71">22 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="71">22-1/2"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
 		<td align="left" width="285">All 1993-'95, except Corvette</td>
 	</tr>
 	<tr>
-		<td width="120">4L60E</td>
+		<td width="120">'''4L60E'''</td>
-		<td align="center" width="70">29 <sup>7</sup>/<sub>8</sub>"</td>
+		<td align="center" width="70">29-7/8"</td>
-		<td align="center" width="64">23 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="64">23-3/8"</td>
-		<td align="center" width="71">22 <sup>1</sup>/<sub>2</sub>"</td>
+		<td align="center" width="71">22-1/2"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
 		<td align="center" width="54">20"</td>
 		<td align="left" width="285">Corvette, 1993-'95</td>
 	</tr>
 	<tr>
-		<td width="120">4L60E</td>
+		<td width="120">'''4L60E'''</td>
-		<td align="center" width="70">30 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="70">30-3/4"</td>
-		<td align="center" width="64">21 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="64">21-3/4"</td>
-		<td align="center" width="71">23 <sup>3</sup>/<sub>16</sub>"</td>
+		<td align="center" width="71">23-3/16"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">18 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="54">18-1/4"</td>
 		<td align="left" width="285">All 1996-up, except Corvette and LS1</td>
 	</tr>
 	<tr>
-		<td width="120">4L60E</td>
+		<td width="120">'''4L60E'''</td>
-		<td align="center" width="70">31 <sup>5</sup>/<sub>32</sub>"</td>
+		<td align="center" width="70">31-5/32"</td>
-		<td align="center" width="64">21 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="64">21-3/4"</td>
-		<td align="center" width="71">23 <sup>19</sup>/<sub>32</sub>"</td>
+		<td align="center" width="71">23-19/32"</td>
-		<td align="center" width="53">3 <sup>3</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">3-3/4"</td>
-		<td align="center" width="54">18 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="54">18-1/4"</td>
 		<td align="left" width="285">LS1, 1998-up</td>
 	</tr>
 	<tr>
-		<td width="120">4L60E</td>
+		<td width="120">'''4L60E'''</td>
 		<td align="center" width="70">n/a</td>
 		<td align="center" width="64">n/a</td>
@@ Line 836: / Line 1,305: @@
 	</tr>
 	<tr>
-		<td width="120">4L80E</td>
+		<td width="120">'''4L80E'''</td>
-		<td align="center" width="70">32 <sup>11</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">32-11/16"</td>
 		<td align="center" width="64">26"</td>
-		<td align="center" width="71">30 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">30-3/8"</td>
-		<td align="center" width="53">4 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">4-1/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">1991-up, Std.; 2WD</td>
+		<td align="left" width="285">1991-up, std. duty; 2WD</td>
 	</tr>
 	<tr>
-		<td width="120">4L80E</td>
+		<td width="120">'''4L80E'''</td>
-		<td align="center" width="70">31 <sup>11</sup>/<sub>16</sub>"</td>
+		<td align="center" width="70">31-11/16"</td>
 		<td align="center" width="64">26"</td>
-		<td align="center" width="71">30 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">30-3/8"</td>
-		<td align="center" width="53">4 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">4-1/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">1991-up, Heavy duty; 2WD</td>
+		<td align="left" width="285">1991-up, heavy duty; 2WD</td>
 	</tr>
 	<tr>
-		<td width="120">4L80E</td>
+		<td width="120">'''4L80E'''</td>
 		<td align="center" width="70">33"</td>
 		<td align="center" width="64">26"</td>
-		<td align="center" width="71">30 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">30-3/8"</td>
-		<td align="center" width="53">4 <sup>1</sup>/<sub>4</sub>"</td>
+		<td align="center" width="53">4-1/4"</td>
 		<td align="center" width="54">20"</td>
-		<td align="left" width="285">1991-up, Heavy duty; Long</td>
+		<td align="left" width="285">1991-up, heavy duty; Long</td>
 	</tr>
 	<tr>
-		<td width="120">4L80E</td>
+		<td width="120">'''4L80E'''</td>
 		<td align="center" width="70">29"</td>
 		<td align="center" width="64">26"</td>
-		<td align="center" width="71">30 <sup>3</sup>/<sub>8</sub>"</td>
+		<td align="center" width="71">30-3/8"</td>
 		<td align="center" width="53">n/a</td>
 		<td align="center" width="54">20"</td>
@@ Line 872: / Line 1,341: @@
 	</tr>
 </table>
+;Note
+'''(1)''' An extension housing p/n 8673406 (old p/n 24214689) is available for the 700R4/4L60 transmission that moves the rear transmission mount to the same position as a T-400 (short-style 4” tail) or 2004R transmission. This 7-3/8” long extension housing can eliminate transmission crossmember modifications when replacing a T-400 or 2004R transmission with a 4L60 assembly.<br>
 ===Typical application information===
 [[Image:Transmission_guidelines.jpg‎]]
+==Early GM automatic transmissions==
+; [[General Motors transmissions#Automatic transmissions |Return to above]].
+<table border="1" cellpadding="2" cellspacing="0"><tr><td bordercolorlight="#ffcccc" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <font size=“2”><b>Hydramatic</b></font></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#fff8dc" height="20" width="100%">
+    <font size=“2”>&nbsp;Hydramatic used in 1946-'63</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+<font size=“2”>Dynaflow</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Dynaflow (2-speed) used in 1948-'63 Buick only</font></td>
+    </tr>
+     <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+    <font size=“2”>Cast iron<br>Powerglide</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Cast iron case Powerglide (2-speed) used in 1950-'62 Chevrolet only</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+    <font size=“2”>Jetaway 315</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Jetaway 315 used in 1956-'64 Olds, Pontiac, Cadillac, AMC</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+    <font size=“2”>TurboGlide</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;TurboGlide used in 1957-'61 Chevrolet only</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b><font size=“2”>FlightPitch</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;FlightPitch used in 1958-'59 Buick only</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+<font size=“2”>Corvair<br>Powerglide</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Corvair Powerglide (2-speed) used in 1960-'69 Corvair &amp; 1961-'63 Tempest only</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+<font size=“2”>Buick Special</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Buick Special used in 1961-'63 Buick Special only</font></td>
+    </tr>
+  <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+    <font size=“2”>240 RHM</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Roto-Hydramatic 240 used in 1961-'63 Olds F85 only</font></td>
+    </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b><font size=“2”>375 RHM<br> (Slim Jim)</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Roto-Hydramatic 375 (Slim Jim) used in 1961-'64 Olds, Pontiac</font></td>
+    </tr>
+<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+<font size=“2”>Aluminum<br>Powerglide</font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+    <font size=“2”>&nbsp;Aluminum Powerglide (2-speed) used in 1962-'73 Chevrolet only</font></td>
+  </tr>
+ <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#CCCCFF" height="15" width="15%">
+    <p align="center">
+    <b>
+<font size=“2”>ST300 </font></b></p></td>
+    <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-right-style: outset;  border-top-style: solid; border-top-width: 1; border-bottom-style: solid; border-bottom-width: 1" bgcolor="#FFF8DC" height="20" width="100%">
+<font size=“2”>&nbsp;Super Turbine 300 (2-speed) used in 1964-'69 Buick, Olds, Pontiac</font></td>
+    </tr></table>
+<br>
 == Two speed automatic==
 ===Powerglide===
+[[File:CI PG driver1.jpg|thumb|400px|right|Cast iron Powerglide]]
 The Powerglide transmission was used in Chevrolet vehicles from 1950 to '73. The cast iron PG was used from 1950-'62, the cast iron PG has no bottom pan.
@@ Line 888: / Line 1,446: @@
 *1956-up uses the internal spline style friction plates
 *1957 is the only cast iron Powerglide that has three (3) 0.090" and two (2) 0.070" steel clutch plates, all others have five (5) 0.070" steel plates
-*Some 1961, and most if not all 1962 Powerglides use the 12 tang steel clutch plates
+*Some 1961, and most if not all 1962 Powerglides use the 12 tang steel clutch plates <br style="clear:both"/>
 ====Band adjustment====
@@ Line 900: / Line 1,458: @@
 The ST-300 was also produced with a variable pitch torque converter. This converter could change stall RPM with an electric solenoid inside the transmission that was activated by a switch usually mounted on the throttle linkage.
+One positive method to identify this transmission is to notice the fluid port on the stator support shaft.  The proper matching Torque Converter will have the corresponding bushings inside the Torque Converter that creates the fluid channel.  This fluid channel allows the pressurized transmission fluid to change the pitch of the vanes.
+[[File:-ST300 Drv Side 1.jpg|frame|left|ST300 left side view shows the electrical connector near the rear of the transmission, that also depicts this as a switch pitch style of transmission.]]
+[[File:-ST300 Input Shaft2.jpg|frame|right|ST300 input shaft, open port seen on the stator support passes the pressurized transmission fluid to the torque converter and causes the vanes to change pitch at operating speed.]]<br style="clear: both" />  [[File:ST300_TQ_Converter_Pic_1.jpg|frame|left|On the outside of this Torque Converter there are no tell tale signs to depict this converter as a switch pitch style converter.  Some converters will have small welded bumps on the outside, yet in this case, this converter does not. ]]  [[File:-ST300 TQ Converter Pic 3B.jpg|frame|center|By looking into this converter, you can see the set of narrow bushings that ride upon the stator support that creates a fluid channel that is a pass-through for the pressurized fluid needed to change the pitch of the torque converter vanes.]]
 ===Torque-Drive===
 This was a low cost Powerglide-based transmission that used a manual valve body. It had to be manually shifted into high and down to low. It was sold under RPO MB1, and cost about $100 less than a Powerglide. It was available with 4 cylinder and 6 cylinder engines.
+===Dynaflow===
+When you say Buick "Dynaflow", it's like saying "Chevy engine". Some still mistakenly refer to the early '60s aircooled Buick Dual Path- as well as ALL Buick trannys up until the Turbo Hydramatic came out, for that matter- as a "Dynaflow".
+There were a lot of iterations of the Dynaflow- beginning w/the early 1948-'49 version that acted something like a hydraulic version of a CVT tranny (it did have two "speeds"; selecting LOW would get you about 50 MPH, then you manually selected DRIVE).
+By about 1953 the "Dynaflow" was replaced by the "Twin Turbine Dynaflow", which then became the "Variable Pitch Dynaflow", around 1955.
+This was followed in 1958 by a triple turbine Dynaflow. There was another short lived tri-turbine AT, the "Turboglide" that was used by Chevy as an option in 1957 until about 1960, known as the Buick "Flight-Pitch" Dynaflow. It lasted until 1959. The different transmissions can be identified by the difference in the shift quadrants; Twin Turbines had a P-N-D-L-R pattern, Triple Turbines were P-R-N-D-G. In 1959 Buick dropped the “Dynaflow” name, the Variable Pitch Dynaflow became the “Twin Turbine”, the Flight Pitch Dynaflow was now called the “Triple Turbine”.
+saw the subcompact Buick Skylark/Special come along w/the “Dual Path Turbine Drive”, usually  called  the “Dual Path”.  First gear was only about 1.6:1, so this was a bad design for acceleration if not for the car’s relatively decent power to weight ratio- at least w/the 4bbl V8 215 all aluminum engine- and the torque converter’s relatively high torque multiplication.
 ==Three speed automatic==
-[[File:1972 th350 id.jpg|thumb|200px|TH350 accumulator with ID. "72" is year, "152" is a calibration code, "KE" is application code (link to application codes below)]]
+[[File:1972 th350 id.jpg|thumb|200px|T-350 accumulator with ID. "72" is year, "152" is a calibration code, "KE" is application code (link to application codes below)]]
-===TH350, TH350C, TH375B===
+===T-350, T-350C, T-375B===
-the TH350 trans was built in 5 different lengths. Two were 4x4 applications. Tail housing lengths of the two wheel drive were 6 inch, 9 inch and 12 inches. The 12 inch length is not very common. It was used mostly in Buick AND Oldsmobile station wagons.
+the T-350 trans was built in 5 different lengths. Two were 4x4 applications. Tail housing lengths of the two wheel drive were 6 inch, 9 inch and 12 inches. The 12 inch length is not very common. It was used mostly in Buick AND Oldsmobile station wagons.
-===TH350 model ID codes===
+====T-350 model ID codes====
 {|
 |[[File:1972 th350 id.jpg|thumb|200px|TH350 accumulator with ID. "72" is year, "152" is a calibration code, "KE" is application code (link to application codes below)]]
 |[[File:TH350 ID governor cover.jpg|frame|left|ID stamped into governor cover]]
 |}
-Codes for 1969-'72 TH350 transmissions are located on the accumulator; 1973-'81 TH350 codes are on the governor cover. Listings of the transmission application codes can be seen '''[http://www.teufert.net/trans/trans.htm HERE]'''.
+Codes for 1969-'72 T-350 transmissions are located on the accumulator; 1973-'81 T-350 codes are on the governor cover. Listings of the transmission application codes can be seen '''[http://www.teufert.net/trans/trans.htm HERE]'''.
 <br style="clear:both"/>
-===TH400 (3L80), TH375C, TH475 (3L80HD)===
+====ID T-350C====
--up 3L80HD is the HD version of the TH400 found in light trucks.  It has 27 spline output shaft and is 34.5" long overall in 4x2 version. Found cast on the bell housing in medium size letters is 'HD'.  The TH400 transmission was used between 1964-1990.  1987 was the year the transmissions were renamed using the alphanumeric designations.
+The T-350C input looks different than the T-350 non lockup type tranny. Below is the T-350C input:
-===TH400 model ID codes===
+[[File:350lockupinput1.jpg|220px]]
-A listing of the two letter model code found on the metal ID tag is '''[http://www.teufert.net/trans/t-400.htm HERE]'''.
+<br><br>
+A non lockup T-350 input shaft looks like the one shown below:
+[[file:350NONLOCK INPUT.jpg]]
+====T-350 ratios====
+*First: 2.52:1
+*Second: 1.52:1
+*High: 1:1
+===T-400 (3L80), T-375C, T-475 (3L80HD)===
+-up 3L80HD is the heavy duty version of the T-400 found in light trucks.  It has a 27 spline output shaft and is 34.5" long overall in the 2WD version. 'HD' is cast into the bellhousing in medium size letters.  The TH400 transmission was used between 1964-1990. 1987 was the year GM transmissions began using the alphanumeric designations.
+====T-400 ratios====
+*First: 2.48:1
+*Second: 1.48:1
+*High: 1:1
+===Switch Pitch===
+There are SP 400 and SP 300 transmissions. The name "switch pitch" comes from the vanes in the torque converter being able to change their angle (pitch) in order to increase the stall speed to get the vehicle moving easier.
+====SP 300====
+These were found in 1964-'67 and were two-speed. The SP 300 converters are 12". Olds called it the '''Jetaway''', aka the '''Super Turbine 300'''.
+The ST300 had a three element torque converter, a front and rear multiple disc clutch pack, and a compound planetary gearset with a front band and a clutch pack for reverse and manual low gear. The unit was cooled with a small auxiliary ATF cooler located beneath the engine radiator. It had an aluminum case and weighed 152 lb.
+It was designed to start in low gear, providing a gear ratio of 1.765:1 plus the additional torque multiplication provided by the torque converter. The shift pattern was P-R-N-D-L. In Drive at full throttle, it would upshift from low gear to high gear at 60–65 mph.
+From 1964-'67, Buick and Olds versions of this transmission used a torque converter with a variable-pitch stator called Switch Pitch by Buick and Variable Vane by Olds. The stator blades changed pitch by an electrical solenoid and a stator valve, controlled by a switch on the throttle linkage. At light to medium throttle, the stator blades were at 32°, providing a torque multiplication of 1.8:1 and a converter stall speed of approximately 1800 rpm. At ⅔ to full throttle, the blades switched to the 51° high stall position, giving torque multiplication of 2.45:1 and a stall speed of approximately 2300 rpm. The blades were also set to the high position at idle to limit creep when stopped in Drive. The variable pitch stator was eliminated after 1967. This feature was not used on the Pontiac versions of this transmission.
+====SP 400====
+Switch Pitch (SP) 400 transmissions were available from 1965-'67 in full size Buick, Olds and Cadillac cars. Torque converter diameter is 13".
+====SP ID====
+The easiest way to identify the SP is by the pan shape shown below, right. On the SP 400, there are 3 concave and 1 convex dimples and a 'shoe heel' impression. The shoe heel impression is where the filter picks up fluid and the pickup is shaped just like a shoe heel (see photo above right). Filter is a Wix p/n 51879.
+[[File:Th400SPpan.jpg|right|260px]]<br style="clear:both"/>
+The SP transmission has a two-terminal electrical connector on the driver side of the case. The top terminal is for the SP converter: applying 12 VDC to it caused the converter to go to the higher stall setting. The default no-power position is low stall.
+The lower terminal is for the kickdown solenoid. It's operated from the gas pedal or from a switch at the throttle arm of the carburetor.
+*[http://www.buickperformanceclub.com/SPTrans.htm Buick Switch Pitch Transmissions]
+*[http://www.buickperformanceclub.com/switchpitch.htm Itching for a Switch Pitch Transmission]
+====Converting T-400 to SP====
+The SP pump, solenoid and converter can be retrofitted into the early T-400 case. The correct case for this will have a slightly different casting w/a drilled hole present. Later T-400 cases lack this, so the swap isn't possible.
+===T-400 model ID codes===
+A listing of the two letter model code found on the metal ID tag is '''[http://www.teufert.net/trans/t-400.htm HERE]''' (no info on Oldsmobile applications).
 ==Four speed automatic==
-===TH2004R===
+===2004R===
-The TH2004R transmission is the same length as a 6 inch tail housing TH350 transmission. The TH2004R requires a TV cable hook up at the EFI or carb with the correct geometry for correct operation.
+The 2004R transmission is the same length as a 6 inch tail housing T-350 transmission. The 2004R requires a TV cable hook up at the EFI or carb with the correct geometry for correct operation.
+[[File:1984_THM200R4_Pic_1B.jpg|none|frame|2004R removed from a 1984 Delta 88 (GM B body).]]
-===TH700R4 (4L60)===
+Many 2004R uses a dual pattern bell housing and a 4-way connector.  If you are not using the ECM/TCM unit, then there are aftermarket kits sold that will operate the locking converter.  Unlike the T-200 which could be a locking or non-locking torque converter, all 2004R transmissions used a locking converter.
+In custom/non original applications, an [https://www.summitracing.com/parts/aww-500412/overview/ inexpensive lock up kit] will simplify installation, the instructions in the kit are reported as being vague, so further research may be needed.
+===700R4 (4L60)===
 ===4L60E===
-L60E is an electronic shifted and pressure controlled version of the 700R4 / 4L60 transmission.
+L60E is an electronic shifted and pressure controlled version of the 700R4/4L60 transmission. Introduced 1993 with the GM truck lineup (GMT400 trucks, G-series vans, M/L van (Astro/Safari), and GMT325 (S-series including the 1993 Typhoon).
+*Early 4L60E resembles the non-electronic 4L60/700R4 but does not have a governor assembly; RH side of transmission case has a green plug which is the main electrical connector.
+*1995-'97 production 4L60E has a PWM solenoid added to the valvebody - produced until 1997.
+**Some 1996-'97 GMT400s will have the early 4L60E with some overlap since the second design was initially used with the Vortec 4.3L which had a redesigned oil pan that bolts to the transmission bellhousing.
+Second design 4L60E introduced in 1996. First use was with 1996+ Vortec 4.3L used with the GM truck/van line. Produced until the 2005 model year when the S-series was phased out.
+*Has a removable bellhousing.
+*Tailhousing has six bolts.
+Third design 4L60E introduced in 1997. Replaced the second design where this variant is known as the LSx 4L60E (includes the 4L65 and 4L70).*First used with the fifth generation (C5) Corvette behind the LS1.
+*Has a 7 bolt bellhousing and longer input shaft.
+*When used with the 4.3L the crankshaft pilot was deepened to 1.410" - this also included a redesigned flexplate.
 ===4L80E===
@@ Line 938: / Line 1,576: @@
 ===6L80E, 6L90E===
-General Motors 6 speed automatic. While some parts swap between the 6l80 and 6l90, there are differences to watch out for, such as a longer case length for the 6l90 as well as larger output and spline count. Verses the 32 splines of the 6l80.
+General Motors 6 speed automatic. While some parts swap between the 6L80 and 6L90, there are differences to watch out for, such as a longer case length for the 6L90 as well as larger output and spline count. Verses the 32 splines of the 6L80.
 [[File:6L90 trans.jpg|thumb|left|330px|6L90 transmission.]]
 <br style="clear:both"/>
 ==Cooler lines==
-{{Note1}}All except TH200C and TH2004R- which are opposite.
+{{Note1}}All except T-200C and 2004R- which are opposite.
 *Top line of the transmission = in '''''from''''' the cooler
 *Bottom line of the transmission = out '''''to''''' the cooler
-===TH350 adapters===
+===T-350 adapters===
-GM uses an adapter which threads into the case cooler ports and is sealed with a washer. The adapter converts the thread to inverted flare for hard line usage. The cooler ports on the TH350 are usually a female 1/4"-18 NPSM (National Pipe Straight Mechanical (NPSM)) and use a metal washer/seal. The NPSM threads will fit a NPT (tapered) fitting, but if a tapered fitting is to be used, be careful to not over tighten it.
+GM uses an adapter which threads into the case cooler ports and is sealed with a washer. The adapter converts the thread to inverted flare for hard line usage. The cooler ports on the T-350 are usually a female 1/4"-18 NPSM (National Pipe Straight Mechanical (NPSM)) and use a metal washer/seal. The NPSM threads will fit a NPT (tapered) fitting, but if a tapered fitting is to be used, be careful to not over tighten it.
-===TH350 fitting torque values===
+===T-350 fitting torque values===
 *Straight pipe fitting- 20 ft/lb
 *Tapered pipe fitting- 15 ft/lb
-===TH400 fitting torque values===
+===T-400 fitting torque values===
-*TH400 is 28 ft/lb.
+*T-400 is 28 ft/lb.
 ==Bellhousing bolt patterns==
-The following is a list of GM bellhousing patterns. This section is based on wiki article [http://en.wikipedia.org/wiki/List_of_GM_bellhousing_patterns List of GM bellhousing patterns].
+The following is a list of GM bellhousing patterns. This section is based on wiki article [http://en.wikipedia.org/wiki/List_of_GM_bellhousing_patterns List of GM bellhousing patterns]. Not pictured are the bellhousing patterns used with non-GM engines e.g. Rolls-Royce, Jaguar, and AMC/Jeep.
 ===Chevrolet pattern===
@@ Line 966: / Line 1,608: @@
 * GM 90° V6 (200/229/4.3L)
 * GM [http://en.wikipedia.org/wiki/GM_Iron_Duke_engine Iron Duke] RWD inline 4 (early RWD variants, later versions may use a FWD pattern, and have two possible starter locations)
-* Jeep with GM Iron Duke inline 4 2.5L/151cid (1980-'83). These use a MOPAR Torqueflite 904 automatic transmission with an integral Chevrolet bellhousing. Do not confuse with later AMC 2.5L engine that uses the GM metric pattern (see below).
+* AMC/Jeep with GM Iron Duke inline 4 2.5L/151cid (1980-'83). These use a MOPAR Torqueflite 904 automatic transmission with an integral Chevrolet bellhousing (found in the Jeep CJ and AMC Eagle including the Concord/Spirit). Do not confuse with later AMC 2.5L engine that uses the GM metric pattern (see below).
-* Chevrolet inline 6 (1963-up)
+* Chevrolet inline 6 (third generation 1962-1990 (Latin America production to 2001)
-* Chevrolet 153 inline 4 (Chevy II, pre-Iron Duke, includes the Vortec 3000/181 industrial/marine crate engine)
+* Chevrolet 153 inline 4 (Chevy II, Opala (GM do Brasil), South African-market GM products, pre-Iron Duke, includes the Vortec 3000/181 industrial/marine crate engine)
-* GM [http://en.wikipedia.org/wiki/GM_Atlas_engine Atlas engine]
+* GM [http://en.wikipedia.org/wiki/GM_Atlas_engine Atlas engine]<br style="clear:both"/>
 ===Buick, Oldsmobile, Pontiac (BOP) V8 pattern===
 [[image:BOP_bell_pattern.jpg|thumb|280px|BOP bolt pattern]]
 * Post-1965 Buick/Oldsmobile/Pontiac RWD V8
-* Buick big block and 1963-up small block V8
+* Buick V8 1967-up
 * Buick pre-3800 90° RWD V6
 * Jeep [http://en.wikipedia.org/wiki/Buick_V6_engine#Dauntless Dauntless 225cid oddfire V6] (1967-'74)
@@ Line 981: / Line 1,624: @@
 <br style="clear:both"/>
-===Adapters===
+====Adapters====
 TCI and Trans-Dapt make adapter plates for mounting a BOP transmission to a Chevy engine or vice versa. They are plenty sturdy for all but the most demanding circumstances, and the cost is relatively low.
-[[File:Tci detail.jpg|thumb|300px|left|TCI adapter p/n 230001 for Buick, Cadillac, Oldsmobile, Pontiac engines to Chevy transmissions]]<br style="clear:both"/>[[File:WILCAP ADAPTOR EARLY HEMI TO TH350.jpg|200px|thumb|left|Wilcap adapter on early Hemi for using TH350 transmission]] Wilcap offers an adapter to mount the TH350 tranny to the early Chrysler Hemi (above).<br style="clear:both"/>
+[[File:Tci detail.jpg|thumb|300px|left|TCI adapter p/n 230001 for Buick, Cadillac, Oldsmobile, Pontiac engines to Chevy transmissions]]<br style="clear:both"/>
+[[File:WILCAP ADAPTOR EARLY HEMI TO TH350.jpg|200px|thumb|left|Wilcap adapter on early Hemi for using T-350 transmission]] <br style="clear:both"/>Wilcap offers an adapter to mount the T-350 tranny to the early Chrysler Hemi (above).<br style="clear:both"/>
 ===Uni-bell pattern===
-This photo shows a multi-pattern case. Both the BOP and Chevrolet pattern on the same bell housing.
+This photo shows a multi-pattern case. Both the BOP and Chevrolet pattern on the same bell housing. First appeared in the mid to late 1960s with the Super Turbine 300. Usage was later widespread with the T-350 (late 1970s - '80s) and a majority of the 200-4R.
 [[image:Multi_pattern_bell.jpg|thumb|left|300px|Uni-bell pattern]]
 <br style="clear:both"/>
@@ Line 993: / Line 1,639: @@
 [[File:GM 60deg V6 bellhousing.JPG|thumb|200px|GM 60 degree pattern]]
 The GM metric pattern is also called the GM ''small corporate pattern'' and the ''S10 pattern''. This pattern has a distinctive odd-sided hexagonal shape. Rear wheel drive applications have the starter mounted on the passenger side of the block. The 2.2L S10/Sonoma had the starter located in the same position as front wheel drive cars. A rear wheel drive bellhousing is displayed at right.
-* GM [http://en.wikipedia.org/wiki/GM_60-Degree_V6_engine 60 degree V6] 2.8/3.1/3.4/3.5/3.9L V6 (also used by AMC)
+* GM [http://en.wikipedia.org/wiki/GM_60-Degree_V6_engine 60 degree V6] 2.8/3.1/3.4/3.5/3.9L V6 (also used by AMC/Jeep 1984-'86 for the Jeep Cherokee/Comanche XJ and MJ, when optioned with the 2.8L)
 * [http://en.wikipedia.org/wiki/Buick_V6_engine Buick V6] 3300/3800 V6
 * Cadillac [http://en.wikipedia.org/wiki/Cadillac_V8_engine#HT-4100 4.1/4.5/4.9L V8]
@@ Line 999: / Line 1,645: @@
 * GM [http://en.wikipedia.org/wiki/GM_Iron_Duke_engine Iron Duke]/Tech-4 2.5L inline 4
 * GM [http://en.wikipedia.org/wiki/GM_122_engine "122"] 1.8/2.0/2.2L inline 4
-* AMC/[http://en.wikipedia.org/wiki/Chrysler_2.2_%26_2.5_engine#2.5 Chrysler 2.5L inline 4] engine found in Jeep Cherokee, Comanche, Wagoneer, CJ, Wrangler, and Dodge Dakota
+* AMC/[http://en.wikipedia.org/wiki/Chrysler_2.2_%26_2.5_engine#2.5 Chrysler 2.5L inline 4] engine (1984-2002) found in Jeep Cherokee, Comanche, Wagoneer, CJ, 1984-86 DJ-5 (Postal Jeep used by the USPS), Wrangler, and Dodge Dakota (1996-02)
 * GM [http://en.wikipedia.org/wiki/GM_LS_engine#5.3_L_2 5.3L LS4] V8
 * GM [http://en.wikipedia.org/wiki/Northstar_engine_series#LX5_.28Shortstar.29 3.5L LX5 V6] "Shortstar"
@@ Line 1,016: / Line 1,662: @@
 [[File:Ecotec2.jpg|thumb|center|400px|Ecotec pattern]]
 <br style="clear:both"/>
+===Buick Nailhead round pattern===
+to 1966 364/401/425 Buick Nailhead engines share a unique bellhousing bolt pattern. Will not fit the 264/322 Nailhead engine made from 1953-'56. The 1953-'56 bellhousing/flywheel looks the same as the 1957-'66 Nailheads but they are about 1" larger.
 ===Buick and Rover aluminum V8 pattern===
@@ Line 1,034: / Line 1,683: @@
 ==Speedometer==
-===TH350, TH400, manual speedometer gear ID===
-*[http://www.teufert.net/trans/speedo.htm Speedometer colors/tooth count]
+===T-350, T-400, manual speedometer gear ===
+*[http://www.tciauto.com/tc/speedometer-gear-calculator/ Speedometer gear info and calculator]
 *[http://www.teufert.net/trans/speedo-gears.htm Speedometer gear usage chart]
 ==Fastener threads==
-LX engine tranny to block bolts are metric: M10 x 1.5.
+Using SAE bolts on a GM transmission mount after about 1978 will strip the mount threads. GM converted to metric mount bolts about 1978 even though most of the rest of the transmission bolts did not change until the 700R4 and 4L80E came out.
-Using SAE bolts on a GM transmission mount after about 1978 will strip the mount threads. GM converted to metric mount bolts about 1978 even though most of the rest of the transmission bolts did not change until the TH700R4 and TH4L80/E came out.
+T-350 and T-400 transmission mount, speedometer, and solenoid bolts went metric about 1978. All other bolts were SAE to the end of production.
-TH350 and TH400 transmission mount, speedometer, and solenoid bolts went metric about 1978. All other bolts were SAE to the end of production.
+T-200C, 2004R, 700R4, and later transmissions used metric fasteners.
-TH200C, TH2004R, TH700R4, and later transmissions used metric fasteners.
+LX engine transmission to block bolts are metric: M10 x 1.5. Also includes 2001-'02 SBC used in the Chevrolet Express/GMC Savana (crate motors including those for marine/industrial retain the use of SAE bolts).
+==Case fluid plugs==
+*[http://www.epcoproducts.com/magplugs.html EPCO Zero-Leak Gold plugs]
 ==Resources==
-*[[Transmission identification]]
+*[http://fiedlerh.home.att.net/BW.htm Borg Warner Second Design ST-10 4-Speed Info], codes, applications
+*[http://pontiacpower.org/BW.htm Borg Warner Second Design ST-10 4-Speed Info] from Pontiac Power
+*[http://www.chevyhiperformance.com/techarticles/46140_chevrolet_transmission_swap_guide/index.html Chevrolet Transmission Swap Guide - Swap Into Overdrive], a transmission swapping guide for early Chevrolets
+*[http://www.wilcap.com/tech.html GM, MOPAR, and Ford bellhousing bolt patterns], including some manual tranny bolt patterns
+*[http://www.maliburacing.com/auto_tranny_id.htm GM Automatic Transmission Identification and Information]
 *[http://www.teufert.net/trans/tranny.htm Tranny info]
 ;Crankshaft Coalition Wiki articles
 *[http://www.crankshaftcoalition.com/wiki/Category:Transmission Transmission category]
+*[[Transmission identification]]
-[[Category:Transmission]]
+*[[Transmission lube]]
-[[Category:Good articles]]
+*[[Torque converter]]
+<br><br>
-{{develop1}}
+[[Category:Transmission]]
+[[Category:Identification and decoding]]
+[[Category:GM]]

General Motors transmissions

Latest revision as of 21:22, 22 March 2024

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