Editing General Motors transmissions
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==Overview== | ==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. | |
==Types of transmissions== | ==Types of transmissions== | ||
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===Borg Warner OD wiring diagram=== | ===Borg Warner OD wiring diagram=== | ||
[[File:Od-wiringdiagrm.jpg]] <br style="clear:both"/> | [[File:Od-wiringdiagrm.jpg]] <br style="clear:both"/> | ||
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+ | ===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== | ==Four speed manual transmission identification and description== | ||
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Image:Borgwarner.jpg|The '''Borg Warner''' has a 9 bolt cover. | Image:Borgwarner.jpg|The '''Borg Warner''' has a 9 bolt cover. | ||
</gallery> | </gallery> | ||
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===Muncie 4-speed=== | ===Muncie 4-speed=== | ||
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====Identifying Muncie M20 series transmissions==== | ====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'. | 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'. | ||
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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). | 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 | + | 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. |
====Muncie info from AutoGear:==== | ====Muncie info from AutoGear:==== | ||
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*[http://www.ttcautomotive.com/onlineorder/product.asp TTC (Tremec)] | *[http://www.ttcautomotive.com/onlineorder/product.asp TTC (Tremec)] | ||
*[http://www.jalopyjournal.com/forum/showthread.php?t=169265 HAMB links] | *[http://www.jalopyjournal.com/forum/showthread.php?t=169265 HAMB links] | ||
− | *[http://www.flatheadv8.org/t5-swap.htm T5 swap info] | + | *[http://www.flatheadv8.org/t5-swap.htm T5 swap info] from flathead V8.org |
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*[http://www.hotrodders.com/forum/t5-trans-question-172815-2.html Hotrodders thread] | *[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.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.carcraft.com/techarticles/ccrp_1206_600_dollar_five_speed_swap/index.html The $600 Five-Speed Swap], Car Craft, June, 2012 | ||
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==Six speed manual== | ==Six speed manual== | ||
GM used three basic 6 speed manuals over the years: | GM used three basic 6 speed manuals over the years: | ||
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===German ZF S6-40=== | ===German ZF S6-40=== | ||
− | 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 | + | 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. |
ZF 6-speed ratios are as follows: | ZF 6-speed ratios are as follows: | ||
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===Borg Warner/Tremec T56=== | ===Borg Warner/Tremec T56=== | ||
− | Starting with the 1992 | + | 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. |
− | 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 | + | 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: |
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====T56 transmission ratios- 1993 F-body with 2.73:1 axle:==== | ====T56 transmission ratios- 1993 F-body with 2.73:1 axle:==== | ||
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===NV5600=== | ===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. | |
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[[File:NV5600.jpg|frame|left|NV5600]] | [[File:NV5600.jpg|frame|left|NV5600]] | ||
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<br style="clear:both"/> | <br style="clear:both"/> | ||
==Automatic transmissions== | ==Automatic transmissions== | ||
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<table style="border-collapse: collapse" border="0" bordercolor="#111111" cellpadding="0" cellspacing="0" height="6" width="90%"><tr> | <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%"> | <td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; bgcolor=" bgcolor="#CCCCFF" height="20" width="100%"> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <b><font size=“2”> | + | <b><font size=“2”>TH180</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%"> | <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”> 3-speed 1969-'79</font></td> | <font size=“2”> 3-speed 1969-'79</font></td> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <b><font size=“2”> | + | <b><font size=“2”>TH180C</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%"> | <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”> 3-speed 1980-up electronic torque converter lock-up (TCC)</font></td> | <font size=“2”> 3-speed 1980-up electronic torque converter lock-up (TCC)</font></td> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH200</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%"> | <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”> 3-speed 1976-'80</font></td> | <font size=“2”> 3-speed 1976-'80</font></td> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH200C</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%"> | <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”> 3-speed 1981-'87 electronic torque converter lock-up (TCC)</font></td> | <font size=“2”> 3-speed 1981-'87 electronic torque converter lock-up (TCC)</font></td> | ||
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<p align="center"> | <p align="center"> | ||
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− | + | TH350</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%"> | <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”> 3-speed 1969-'80</font></td> | <font size=“2”> 3-speed 1969-'80</font></td> | ||
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<p align="center"> | <p align="center"> | ||
<b><font size=“2”> | <b><font size=“2”> | ||
− | + | TH350C</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%"> | <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”> 3-speed 1981-'86 lock-up torque converter (TCC)</font></td> | <font size=“2”> 3-speed 1981-'86 lock-up torque converter (TCC)</font></td> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH400 </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%"> | <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”> 3-speed 1964-'98 electric kick down | + | <font size=“2”> 3-speed 1964-'98 electric kick down</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH2004R</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%"> | <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”> Overdrive 1981-'90</font></td> | <font size=“2”> Overdrive 1981-'90</font></td> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH700R4</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%"> | <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”> Overdrive 1981-'92 electronic torque converter lock-up (TCC) | + | <font size=“2”> Overdrive 1981-'92 electronic torque converter lock-up (TCC)</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
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<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b>4L60E | + | <font size=“2”><b>4L60E</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%"> | <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”> Electronic overdrive 1993-up | + | <font size=“2”> Electronic overdrive 1993-up</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
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4L80E</font></b></p></td> | 4L80E</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%"> | <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”> Electronic overdrive 1991-up full size trucks only | + | <font size=“2”> Electronic overdrive 1991-up full size trucks only</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
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<font size=“2”><b>5L40E</b></font></p></td> | <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%"> | <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”> Electronic overdrive 1999-up (5-speed) Cadillac Catera and CTS | + | <font size=“2”> Electronic overdrive 1999-up (5-speed) Cadillac Catera and CTS</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
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<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH125</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%"> | <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”> 3-speed 1980-'81</font></td> | <font size=“2”> 3-speed 1980-'81</font></td> | ||
Line 954: | Line 760: | ||
<p align="center"> | <p align="center"> | ||
<b> | <b> | ||
− | <font size=“2”> | + | <font size=“2”>TH125C</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%"> | <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”> 3-speed 1982-up electronic controlled lock-up torque converter (TCC)</font></td> | + | <font size=“2”> 3-speed 1982-up electronic controlled lock-up torque converter |
+ | (TCC)</font></td> | ||
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <b><font size=“2”> | + | <b><font size=“2”>TH325</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%"> | <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”> 3-speed 1979-'81 | + | <font size=“2”> 3-speed 1979-'81</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH3254L</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%"> | <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”> Overdrive 1982-'85 electronic controlled lock-up torque converter (TCC) | + | <font size=“2”> Overdrive 1982-'85 electronic controlled lock-up torque converter |
+ | (TCC)</font></td> | ||
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
<p align="center"> | <p align="center"> | ||
− | <font size=“2”><b> | + | <font size=“2”><b>TH425</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%"> | <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”> 3-speed 1966-'78 (electric passing gear | + | <font size=“2”> 3-speed 1966-'78 (electric passing gear)</font></td> |
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
Line 980: | Line 788: | ||
<b><font size=“2”>440T4</font></b></p></td> | <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%"> | <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”> Overdrive 1985-'92 electronic controlled lock-up torque converter (TCC)</font></td> | + | <font size=“2”> Overdrive 1985-'92 electronic controlled lock-up torque |
+ | converter (TCC)</font></td> | ||
</tr> | </tr> | ||
<tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | <tr><td bordercolorlight="#FFCCCC" bordercolordark="#800080" style="border-style: outset; " bgcolor="#FFF8DC" height="15" width="15%"> | ||
Line 1,073: | Line 882: | ||
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. | 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> | <br><br> | ||
− | The 1957 trans is visually different from the later trans in that it has a pair of cast transmission mounts on its | + | 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. |
<br><br> | <br><br> | ||
− | The 1958 and later Turboglides have a very short tail shaft, no mounts on the | + | 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. |
<br><br> | <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. | 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> | <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. | |
<br><br> | <br><br> | ||
− | The Turboglide as well as most of the other GM automatics of the time were phased out in favor of the | + | 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. |
</Blockquote> | </Blockquote> | ||
Line 1,097: | Line 906: | ||
|- | |- | ||
!bgcolor="#CCCCFF"| 2 | !bgcolor="#CCCCFF"| 2 | ||
− | | | + | | TH200 (Metric), TH200C (Metric) |
| align = "center" | 11 | | align = "center" | 11 | ||
|- | |- | ||
! bgcolor="#CCCCFF"|3 | ! bgcolor="#CCCCFF"|3 | ||
− | | | + | | TH250, TH250C, TH350, TH350C, TH375B |
| align = "center" | 13 | | align = "center" | 13 | ||
|- | |- | ||
!bgcolor="#CCCCFF"| 4 | !bgcolor="#CCCCFF"| 4 | ||
− | | | + | | TH375C, TH400, TH475, 3L80, 3L80HD |
| align = "center" | 13 | | align = "center" | 13 | ||
|- | |- | ||
! bgcolor="#CCCCFF"|5 | ! bgcolor="#CCCCFF"|5 | ||
− | | | + | | TH200-4R |
| align = "center" | 16 | | align = "center" | 16 | ||
|- | |- | ||
!bgcolor="#CCCCFF"| 6 | !bgcolor="#CCCCFF"| 6 | ||
− | | | + | | TH700-4R, 4L60, 4L60E |
| align = "center" | 16 | | align = "center" | 16 | ||
|- | |- | ||
Line 1,120: | Line 929: | ||
| align = "center" | 17 | | align = "center" | 17 | ||
|} | |} | ||
− | {{Note1}}Be careful not to mistake a | + | {{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. |
===Transmission dimensions=== | ===Transmission dimensions=== | ||
Line 1,131: | Line 940: | ||
*Dimension "D" is the distance between the center of the mounting bolts - this is the "width" of the mounting pad. | *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. | *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. | ||
− | + | ||
<table id="table2" border="1" cellpadding="2" cellspacing="0" width="91%"> | <table id="table2" border="1" cellpadding="2" cellspacing="0" width="91%"> | ||
<tr bgcolor="#CCCCFF"> | <tr bgcolor="#CCCCFF"> | ||
Line 1,161: | Line 970: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH350'''</td> |
<td align="center" width="70">27-11/16"</td> | <td align="center" width="70">27-11/16"</td> | ||
<td align="center" width="64">21-5/8"</td> | <td align="center" width="64">21-5/8"</td> | ||
Line 1,167: | Line 976: | ||
<td align="center" width="53">3-3/4"</td> | <td align="center" width="53">3-3/4"</td> | ||
<td align="center" width="54">19-1/8"</td> | <td align="center" width="54">19-1/8"</td> | ||
− | <td align="left" width="285">6" | + | <td align="left" width="285">6" Extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH350'''</td> |
<td align="center" width="70">30-11/16"</td> | <td align="center" width="70">30-11/16"</td> | ||
<td align="center" width="64">21-5/8"</td> | <td align="center" width="64">21-5/8"</td> | ||
Line 1,176: | Line 985: | ||
<td align="center" width="53">3-3/4"</td> | <td align="center" width="53">3-3/4"</td> | ||
<td align="center" width="54">19-1/8"</td> | <td align="center" width="54">19-1/8"</td> | ||
− | <td align="left" width="285">9" | + | <td align="left" width="285">9" Extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH350'''</td> |
<td align="center" width="70">33-27/32"</td> | <td align="center" width="70">33-27/32"</td> | ||
<td align="center" width="64">21-5/8"</td> | <td align="center" width="64">21-5/8"</td> | ||
Line 1,185: | Line 994: | ||
<td align="center" width="53">3-3/4"</td> | <td align="center" width="53">3-3/4"</td> | ||
<td align="center" width="54">19-1/8"</td> | <td align="center" width="54">19-1/8"</td> | ||
− | <td align="left" width="285">12" | + | <td align="left" width="285">12" Extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH400/3L80'''</td> |
<td align="center" width="70">28-3/8"</td> | <td align="center" width="70">28-3/8"</td> | ||
<td align="center" width="64">24-5/16"</td> | <td align="center" width="64">24-5/16"</td> | ||
Line 1,194: | Line 1,003: | ||
<td align="center" width="53">4-1/4"</td> | <td align="center" width="53">4-1/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">4" extension housing</td> | + | <td align="left" width="285">4" ("C") Short extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH400/3L80'''</td> |
<td align="center" width="70">33-27/32"</td> | <td align="center" width="70">33-27/32"</td> | ||
<td align="center" width="64">24-5/16"</td> | <td align="center" width="64">24-5/16"</td> | ||
Line 1,203: | Line 1,012: | ||
<td align="center" width="53">4-1/4"</td> | <td align="center" width="53">4-1/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">9" extension housing</td> | + | <td align="left" width="285">9" ("D") Medium extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH400/3L80'''</td> |
<td align="center" width="70">37-7/8"</td> | <td align="center" width="70">37-7/8"</td> | ||
<td align="center" width="64">24-5/16"</td> | <td align="center" width="64">24-5/16"</td> | ||
Line 1,212: | Line 1,021: | ||
<td align="center" width="53">1-3/4"</td> | <td align="center" width="53">1-3/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">13" extension housing</td> | + | <td align="left" width="285">13" Long extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH700R4/4L60'''</td> |
<td align="center" width="70">30-3/4"</td> | <td align="center" width="70">30-3/4"</td> | ||
<td align="center" width="64">23-3/8"</td> | <td align="center" width="64">23-3/8"</td> | ||
Line 1,224: | Line 1,033: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH700R4/4L60'''</td> |
<td align="center" width="70">29-7/8"</td> | <td align="center" width="70">29-7/8"</td> | ||
<td align="center" width="64">23-3/8"</td> | <td align="center" width="64">23-3/8"</td> | ||
Line 1,233: | Line 1,042: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH700R4/4L60'''</td> |
<td align="center" width="70">29-1/2"</td> | <td align="center" width="70">29-1/2"</td> | ||
<td align="center" width="64">23-3/8"</td> | <td align="center" width="64">23-3/8"</td> | ||
Line 1,239: | Line 1,048: | ||
<td align="center" width="53">3-3/4"</td> | <td align="center" width="53">3-3/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">With | + | <td align="left" width="285">With TH350 6" extension housing</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH700R4/4L60'''</td> |
<td align="center" width="70">30-1/2"</td> | <td align="center" width="70">30-1/2"</td> | ||
<td align="center" width="64">23-3/8"</td> | <td align="center" width="64">23-3/8"</td> | ||
Line 1,248: | Line 1,057: | ||
<td align="center" width="53">3-3/4"</td> | <td align="center" width="53">3-3/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285"> | + | <td align="left" width="285">With extension housing 24214689 and |
+ | using mount on extension housing</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td width="120">''' | + | <td width="120">'''TH2004R'''</td> |
<td align="center" width="70">27-11/16"</td> | <td align="center" width="70">27-11/16"</td> | ||
<td align="center" width="64">n/a</td> | <td align="center" width="64">n/a</td> | ||
Line 1,311: | Line 1,121: | ||
<td align="center" width="53">4-1/4"</td> | <td align="center" width="53">4-1/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">1991-up, | + | <td align="left" width="285">1991-up, Std.; 2WD</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
Line 1,320: | Line 1,130: | ||
<td align="center" width="53">4-1/4"</td> | <td align="center" width="53">4-1/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">1991-up, | + | <td align="left" width="285">1991-up, Heavy duty; 2WD</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
Line 1,329: | Line 1,139: | ||
<td align="center" width="53">4-1/4"</td> | <td align="center" width="53">4-1/4"</td> | ||
<td align="center" width="54">20"</td> | <td align="center" width="54">20"</td> | ||
− | <td align="left" width="285">1991-up, | + | <td align="left" width="285">1991-up, Heavy duty; Long</td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
Line 1,341: | Line 1,151: | ||
</tr> | </tr> | ||
</table> | </table> | ||
− | |||
− | |||
===Typical application information=== | ===Typical application information=== | ||
Line 1,428: | Line 1,236: | ||
<p align="center"> | <p align="center"> | ||
<b> | <b> | ||
− | <font size=“2”> | + | <font size=“2”>300 THM</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%"> | <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”> Super Turbine 300 (2-speed) used in 1964-'69 Buick, Olds, Pontiac</font></td> | <font size=“2”> Super Turbine 300 (2-speed) used in 1964-'69 Buick, Olds, Pontiac</font></td> | ||
</tr></table> | </tr></table> | ||
− | |||
== Two speed automatic== | == Two speed automatic== | ||
Line 1,458: | Line 1,265: | ||
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. | 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. | ||
− | |||
− | |||
− | |||
− | |||
− | |||
===Torque-Drive=== | ===Torque-Drive=== | ||
Line 1,470: | Line 1,272: | ||
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". | 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" | + | 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", but 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. | By about 1953 the "Dynaflow" was replaced by the "Twin Turbine Dynaflow", which then became the "Variable Pitch Dynaflow", around 1955. | ||
Line 1,479: | Line 1,281: | ||
==Three speed automatic== | ==Three speed automatic== | ||
− | [[File:1972 th350 id.jpg|thumb|200px| | + | [[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)]] |
− | === | + | ===TH350, TH350C, TH375B=== |
− | the | + | 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. |
− | === | + | ===TH350 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: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]] | |[[File:TH350 ID governor cover.jpg|frame|left|ID stamped into governor cover]] | ||
|} | |} | ||
− | Codes for 1969-'72 | + | 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]'''. |
<br style="clear:both"/> | <br style="clear:both"/> | ||
− | === | + | ===TH400 (3L80), TH375C, TH475 (3L80HD)=== |
− | + | 1987-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. | |
− | + | ===TH400 model ID codes=== | |
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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). | 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== | ==Four speed automatic== | ||
− | === | + | ===TH2004R=== |
− | The | + | 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. |
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− | + | ===TH700R4 (4L60)=== | |
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===4L60E=== | ===4L60E=== | ||
− | 4L60E is an electronic shifted and pressure controlled version of the 700R4/4L60 transmission | + | 4L60E is an electronic shifted and pressure controlled version of the 700R4 / 4L60 transmission. |
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===4L80E=== | ===4L80E=== | ||
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===6L80E, 6L90E=== | ===6L80E, 6L90E=== | ||
− | General Motors 6 speed automatic. While some parts swap between the | + | 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.]] | [[File:6L90 trans.jpg|thumb|left|330px|6L90 transmission.]] | ||
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==Cooler lines== | ==Cooler lines== | ||
− | + | {{Note1}}All except TH200C and TH2004R- which are opposite. | |
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− | {{Note1}}All except | + | |
*Top line of the transmission = in '''''from''''' the cooler | *Top line of the transmission = in '''''from''''' the cooler | ||
*Bottom line of the transmission = out '''''to''''' the cooler | *Bottom line of the transmission = out '''''to''''' the cooler | ||
− | === | + | ===TH350 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. | |
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− | 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 fitting torque values=== |
*Straight pipe fitting- 20 ft/lb | *Straight pipe fitting- 20 ft/lb | ||
*Tapered pipe fitting- 15 ft/lb | *Tapered pipe fitting- 15 ft/lb | ||
− | === | + | ===TH400 fitting torque values=== |
− | * | + | *TH400 is 28 ft/lb. |
==Bellhousing bolt patterns== | ==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]. |
===Chevrolet pattern=== | ===Chevrolet pattern=== | ||
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* GM 90° V6 (200/229/4.3L) | * 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) | * 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). |
− | * Chevrolet inline 6 ( | + | * Chevrolet inline 6 (1963-up) |
− | * Chevrolet 153 inline 4 (Chevy II | + | * Chevrolet 153 inline 4 (Chevy II, 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] |
===Buick, Oldsmobile, Pontiac (BOP) V8 pattern=== | ===Buick, Oldsmobile, Pontiac (BOP) V8 pattern=== | ||
− | [[image:BOP_bell_pattern.jpg|thumb|280px|BOP bolt pattern]] | + | [[image:BOP_bell_pattern.jpg|thumb|280px|BOP bolt pattern]] |
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* Post-1965 Buick/Oldsmobile/Pontiac RWD V8 | * Post-1965 Buick/Oldsmobile/Pontiac RWD V8 | ||
− | * Buick | + | * Buick big block and 1963-up small block V8 |
* Buick pre-3800 90° RWD V6 | * Buick pre-3800 90° RWD V6 | ||
* Jeep [http://en.wikipedia.org/wiki/Buick_V6_engine#Dauntless Dauntless 225cid oddfire V6] (1967-'74) | * Jeep [http://en.wikipedia.org/wiki/Buick_V6_engine#Dauntless Dauntless 225cid oddfire V6] (1967-'74) | ||
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− | + | ===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. | 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"/> | + | |
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− | [[File:WILCAP ADAPTOR EARLY HEMI TO TH350.jpg|200px|thumb|left|Wilcap adapter on early Hemi for using | + | |
===Uni-bell pattern=== | ===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. |
[[image:Multi_pattern_bell.jpg|thumb|left|300px|Uni-bell pattern]] | [[image:Multi_pattern_bell.jpg|thumb|left|300px|Uni-bell pattern]] | ||
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[[File:GM 60deg V6 bellhousing.JPG|thumb|200px|GM 60 degree pattern]] | [[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. | 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) |
* [http://en.wikipedia.org/wiki/Buick_V6_engine Buick V6] 3300/3800 V6 | * [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] | * Cadillac [http://en.wikipedia.org/wiki/Cadillac_V8_engine#HT-4100 4.1/4.5/4.9L V8] | ||
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* 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_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 | * 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 | + | * 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 |
* GM [http://en.wikipedia.org/wiki/GM_LS_engine#5.3_L_2 5.3L LS4] V8 | * 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" | * GM [http://en.wikipedia.org/wiki/Northstar_engine_series#LX5_.28Shortstar.29 3.5L LX5 V6] "Shortstar" | ||
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[[File:Ecotec2.jpg|thumb|center|400px|Ecotec pattern]] | [[File:Ecotec2.jpg|thumb|center|400px|Ecotec pattern]] | ||
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===Buick and Rover aluminum V8 pattern=== | ===Buick and Rover aluminum V8 pattern=== | ||
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==Speedometer== | ==Speedometer== | ||
− | + | ===TH350, TH400, manual speedometer gear ID=== | |
− | === | + | *[http://www.teufert.net/trans/speedo.htm Speedometer colors/tooth count] |
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− | *[http://www. | + | |
*[http://www.teufert.net/trans/speedo-gears.htm Speedometer gear usage chart] | *[http://www.teufert.net/trans/speedo-gears.htm Speedometer gear usage chart] | ||
==Fastener threads== | ==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 TH700R4 and TH4L80/E came out. | |
− | + | TH350 and TH400 transmission mount, speedometer, and solenoid bolts went metric about 1978. All other bolts were SAE to the end of production. | |
− | + | TH200C, TH2004R, TH700R4, and later transmissions used metric fasteners. | |
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==Resources== | ==Resources== | ||
− | *[http://fiedlerh.home.att.net/BW.htm Borg Warner Second Design ST-10 4-Speed Info] | + | *[http://fiedlerh.home.att.net/BW.htm Borg Warner Second Design ST-10 4-Speed Info] Codes, applications; a very informative page. |
− | *[http://pontiacpower.org/BW.htm Borg Warner Second Design ST-10 4-Speed Info] from Pontiac Power | + | *[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.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.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.maliburacing.com/auto_tranny_id.htm GM Automatic Transmission Identification and Information] Very helpful identification guide with identification by pan and transmission dimensions. |
*[http://www.teufert.net/trans/tranny.htm Tranny info] | *[http://www.teufert.net/trans/tranny.htm Tranny info] | ||
;Crankshaft Coalition Wiki articles | ;Crankshaft Coalition Wiki articles | ||
*[http://www.crankshaftcoalition.com/wiki/Category:Transmission Transmission category] | *[http://www.crankshaftcoalition.com/wiki/Category:Transmission Transmission category] | ||
*[[Transmission identification]] | *[[Transmission identification]] | ||
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[[Category:Transmission]] | [[Category:Transmission]] | ||
− | [[Category: | + | [[Category:Good articles]] |
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+ | {{develop1}} |