General Motors transmissions
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==3-speed manual overdrive units== | ==3-speed manual overdrive units== | ||
| − | + | *Article, [http://www.classictruckshop.com/clubs/earlyburbs/projects/t85n/rebuild.htm ''Rebuilding the Borg Warner Overdrive Unit''] | |
===How overdrive works=== | ===How overdrive works=== | ||
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</gallery> | </gallery> | ||
| − | ===Muncie=== | + | ===Muncie 4-speed=== |
| − | ==== | + | ====Muncie reference material==== |
*[http://www.yearone.com/updatedsinglepages/Id_info/muncie.asp Muncie 4-Speed Identification] | *[http://www.yearone.com/updatedsinglepages/Id_info/muncie.asp Muncie 4-Speed Identification] | ||
*[http://www.nastyz28.com/2gcog/trans.html Camaro Transmission Information and Restoration] | *[http://www.nastyz28.com/2gcog/trans.html Camaro Transmission Information and Restoration] | ||
| − | *[http://www.yearone.com/yodnn/tech/VehicleInfoDecoding/GMMuncie4SpeedDecoding/tabid/349/Default.aspx GM Muncie 4-Speed Decoding]. | + | *[http://www.yearone.com/yodnn/tech/VehicleInfoDecoding/GMMuncie4SpeedDecoding/tabid/349/Default.aspx GM Muncie 4-Speed Decoding] |
| + | *[http://www.muncie4speed.com/munciecat.pdf 1963-1974 Muncie 4-speed assemblies, gears and parts] | ||
| − | ===Saginaw=== | + | ===Saginaw 4-speed=== |
| − | ===Borg-Warner=== | + | ===Borg-Warner 4-speed=== |
| + | ====Borg-Warner reference material==== | ||
| + | *[http://www.autogear.net/pdfs/T10%20booklet.pdf 1957-1963 Warner T10 4-speed (early) assemblies, gears and parts] | ||
| + | *[http://www.hotrodders.com/forum/attachment.php?attachmentid=47519 T10 manual] | ||
==Five speed== | ==Five speed== | ||
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Of note is the fact that all T56 transmissions share an interchangeable main case; even those found in Holdens, Fords, Vipers, and Aston Martins. What differs is the front adapter plate, tail shaft housing, shifter, and input/output shafts. Internally, there were some interchangeable differences, like the type of shift forks and synchronizers used, but for the most part all T56s are built on the same stout center section. Gear ratios are as follows: | Of note is the fact that all T56 transmissions share an interchangeable main case; even those found in Holdens, Fords, Vipers, and Aston Martins. What differs is the front adapter plate, tail shaft housing, shifter, and input/output shafts. Internally, there were some interchangeable differences, like the type of shift forks and synchronizers used, but for the most part all T56s are built on the same stout center section. Gear ratios are as follows: | ||
| − | ==== | + | ====T56 transmission ratios- 1993 F-body with 2.73:1 axle:==== |
*Reverse - 3.28 | *Reverse - 3.28 | ||
*First - 3.36 | *First - 3.36 | ||
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*Sixth - 0.62 | *Sixth - 0.62 | ||
| − | ==== | + | ====T56 transmission ratios- 1993 F-body, 3.23:1 axle:==== |
*Reverse - 3.28 | *Reverse - 3.28 | ||
*First - 2.97 | *First - 2.97 | ||
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*Sixth - 0.62 | *Sixth - 0.62 | ||
| − | ==== | + | ====T56 transmission ratios- 1994-current GM production:==== |
*Reverse - 2.90 | *Reverse - 2.90 | ||
*First - 2.66 | *First - 2.66 | ||
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[[File:Tremec dimensions.jpg|thumb|400px|left|T56. Note the multiple options for shifter mounting positions.]] | [[File:Tremec dimensions.jpg|thumb|400px|left|T56. Note the multiple options for shifter mounting positions.]] | ||
<br style="clear:both"/> | <br style="clear:both"/> | ||
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| + | ===T56 transmission torque specs=== | ||
| + | *Backup lamp switch 20 ft/lb | ||
| + | *Clutch actuator cylinder bolt 71 in/lb | ||
| + | *Clutch housing bolt 37 ft/lb | ||
| + | *Control lever handle bolt 18 ft/lb | ||
| + | *Gear select/skip shift solenoid 30 ft/lb | ||
| + | *Reverse lockout assembly bolt 13 ft/lb | ||
| + | *Reverse lockout solenoid 30 ft/lb | ||
| + | *Shift control bolt 13 ft/lb | ||
| + | *Shift control closeout Boot Bolt 18 in/lb | ||
| + | *Shift control knob 27 ft/lb | ||
| + | *Transmission bolt 37 ft/lb | ||
| + | *Transmission drain/fill plug 20 ft/lb | ||
| + | *Transmission mount bolt 38 ft/lb | ||
| + | *Transmission mount nut 77 ft/lb | ||
| + | *Transmission support bolt 66 ft/lb | ||
| + | *Vehicle speed sensor bolt 89 ft/lb | ||
| + | |||
===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. | 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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