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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*[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 | ||
*[http://www.crankshaftcoalition.com/wiki/Transmission_identification#Ford_T-5 Ford T-5] CC wiki page | *[http://www.crankshaftcoalition.com/wiki/Transmission_identification#Ford_T-5 Ford T-5] CC wiki page | ||
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==Six speed manual== | ==Six speed manual== | ||
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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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*The Ram version is rated for 550 lb-ft torque | *The Ram version is rated for 550 lb-ft torque | ||
*A HD version for larger trucks is rated for 650 lb-ft torque | *A HD version for larger trucks is rated for 650 lb-ft torque | ||
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==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"> | ||
<b><font size=“2”> | <b><font size=“2”> | ||
− | + | 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> | ||
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<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%"> | ||
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<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 1,079: | Line 935: | ||
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 953: | ||
|- | |- | ||
!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 | ||
− | | | + | | TH2004R |
| align = "center" | 16 | | align = "center" | 16 | ||
|- | |- | ||
!bgcolor="#CCCCFF"| 6 | !bgcolor="#CCCCFF"| 6 | ||
− | | | + | | TH700R4, 4L60, 4L60E |
| align = "center" | 16 | | align = "center" | 16 | ||
|- | |- | ||
Line 1,120: | Line 976: | ||
| 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 987: | ||
*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 1,017: | ||
</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 1,170: | Line 1,026: | ||
</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 1,179: | Line 1,035: | ||
</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 1,188: | Line 1,044: | ||
</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 1,197: | Line 1,053: | ||
</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 1,206: | Line 1,062: | ||
</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 1,215: | Line 1,071: | ||
</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 1,080: | ||
</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 1,089: | ||
</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 1,095: | ||
<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 1,104: | ||
<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">'''(1)''' Using mount on extension housing p/n 8673406 (old p/n 24214689)</td> | + | <td align="left" width="285">'''(1)'''Using mount on extension housing p/n 8673406 (old p/n 24214689)</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 1,342: | Line 1,198: | ||
</table> | </table> | ||
;Note | ;Note | ||
− | '''(1)''' An extension housing p/n 8673406 (old p/n 24214689) is available for the | + | '''(1)''' An extension housing p/n 8673406 (old p/n 24214689) is available for the TH700R4/4L60 transmission that moves the rear transmission mount to the same position as a TH400 (short-style 4” tail) or TH2004R transmission. This 7-3/8” long extension housing can eliminate transmission crossmember modifications when replacing a TH400 or TH2004R transmission with a 4L60 assembly.<br> |
===Typical application information=== | ===Typical application information=== | ||
Line 1,428: | Line 1,284: | ||
<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 1,313: | ||
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 1,320: | ||
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 1,329: | ||
==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 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 were renamed using the alphanumeric designations. | |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | 1987-up 3L80HD is the | + | |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
+ | [[File:Th400SPpan.jpg|right|260px]] | ||
===Switch Pitch=== | ===Switch Pitch=== | ||
− | + | Switch Pitch (SP) TH400 transmissions were available from 1965-'67 in full size BOCad cars. | |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | 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. | |
− | + | There are SP TH400 and SP TH300 transmissions. The SP 300 were found in 1964-'67 and were two-speed. The SP 300 converters are 12", the SP TH400 are 13". | |
− | + | ||
====SP ID==== | ====SP ID==== | ||
− | The easiest way to identify the SP is by the pan shape | + | The easiest way to identify the SP is by the pan shape. On the SP TH400, 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. |
− | + | ||
− | 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 | + | 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 12VDC to it caused the converter to go to the higher stall setting. Default no-power position is low stall. |
− | The lower terminal is for the kickdown solenoid | + | The lower terminal is for the kickdown solenoid. |
− | *[http:// | + | *[http://web.archive.org/web/20070807215149/http://www.buickperformance.com/switchpitch.htm Switch Pitch info] |
− | + | ||
− | ====Converting | + | ====Converting TH400 to SP==== |
− | The SP pump, solenoid and converter can be retrofitted into the early | + | The SP pump, solenoid and converter can be retrofitted into the early TH400 case. The correct case for this will have a slightly different casting w/a drilled hole present. Later TH400 cases lack this, so the swap isn't possible. |
− | === | + | ===TH400 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). | 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. |
− | + | ||
− | + | ===TH700R4 (4L60)=== | |
− | + | ||
− | + | ||
− | + | ||
− | === | + | |
===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. |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
===4L80E=== | ===4L80E=== | ||
Line 1,581: | Line 1,387: | ||
==Cooler lines== | ==Cooler lines== | ||
− | + | {{Note1}}All except TH200C and TH2004R- which are opposite. | |
− | + | ||
− | {{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. | |
− | + | ||
− | 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=== | ||
Line 1,608: | Line 1,410: | ||
* 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]] |
− | + | ||
* Post-1965 Buick/Oldsmobile/Pontiac RWD V8 | * Post-1965 Buick/Oldsmobile/Pontiac RWD V8 | ||
* Buick V8 1967-up | * Buick V8 1967-up | ||
Line 1,624: | Line 1,425: | ||
<br style="clear:both"/> | <br style="clear:both"/> | ||
− | + | ===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"/> | + | |
− | + | ||
− | [[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 | + | This photo shows a multi-pattern case. Both the BOP and Chevrolet pattern on the same bellhousing. |
[[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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==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. | |
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− | + | 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== | ||
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*[[Transmission identification]] | *[[Transmission identification]] | ||
*[[Transmission lube]] | *[[Transmission lube]] | ||
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<br><br> | <br><br> | ||
[[Category:Transmission]] | [[Category:Transmission]] | ||
[[Category:Identification and decoding]] | [[Category:Identification and decoding]] | ||
+ | [[Category:Good articles]] | ||
[[Category:GM]] | [[Category:GM]] | ||
+ | {{develop1}} |