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[Transmission] Master GM Transmission List


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Old May 10th, 2007, 11:10 PM   #1 (Link to post)
Why yes, it is a 1wd.
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Transmission List


Model



Years



Gears


Application


Source

Last Edited By
700r41982-1993 (?)
First - 3.059

Second - 1.625

Third - 1.000

Fourth - 0.696

Reverse - 2.294

All kinds of GM's


4x4 Mecca

SM4651973-1987

4 forward, 1 reverse. Granny Low 6:58:1

2nd Gear: 3:58:1

3rd Gear: 1:57:1

4th Gear: 1:1

1/2, 3/4 and 1 ton Chevy




MuddinManny
TH4001964-1991(approximate)

3 forward, 1 reverse

1st Gear: 2.48:1

2nd Gear: 1.48:1

3rd Gear: 1:1 		GM, AMC/Jeep



 MuddinManny
4L60E early 1990's - 1997 (1st Version)

1997 - current (2nd Version)

4 forward gears w/overdrive, 1 reverse

1st Gear: 3.06:1

2nd Gear: 1.62:1

3rd Gear:1:1 with an overdrive of 30% (4th Gear) 		GM/Chevy Trucks

www.tlc4x4.com

MuddinManny

4L80E no dates given

4 forward gears w/overdrive, 1 reverse

1st Gear: 2.482

2nd Gear: 1.482

3rd Gear: 1.1

4th Gear (OD): .75.

GM/Chevy Trucks

www.tlc.com

MuddinManny

TH350 1969-19813 forward, 1 reverse

1st Gear: 2.52:1

2nd Gear: 1.52:1

3rd Gear: 1:1.		 GM/Chevy 4WD Trucks

 www.tlc4x4.comMuddinManny

TF727 1980-1991 (SJ production ends)

3 forward, 1 reverse

1st Gear: 2.74:1

2nd Gear: 1.54:1

3rd Gear: 1:1

Chrysler/Jeep

www.tciauto.com

MuddinManny

SM420

 1947-19684 forward, 1 reverse

1st Gear: 7.05:1

2nd Gear: 3.57:1

3rd Gear: 1.7:1

4th Gear: 1:1. 		All GM trucks

 www.tlc4x4.comMuddinManny

NP435

 1993-19945 forward, 1 reverse

1st Gear: 6.34:1

2nd Gear: 3.44:1

3rd Gear: 1.71:1

4th Gear: 1:1 and a 27% overdrive (5th gear)

 GM/Chevy (sparingly)

www.tlc4x4.com

MuddinManny

NV4500 19955 forward, 1 reverse

1st Gear: 5.61:1

2nd Gear: 3.04:1

3rd Gear: 1.67:1

4th Gear: 1:1 ratio, and a 27% overdrive (5th gear)

GM/Chevy

www.tlc4x4.com

MuddinManny

NV45001996-2001

same gears, however there was a change in the bellhousing to tranny bolt pattern, larger BH index

GM/Chevy

www.tlc4x4.com

MuddinManny

4L601990's (New 700R4 reclass)

4 forward gears w/overdrive, 1 reverse

1st Gear: 3.06:1

2nd Gear: 1.62:1

3rd Gear:1:1 with an overdrive of 30% (4th Gear)

GM/Chevywww.tlc.com

MuddinManny

89MMlate model GM 1/2 Tons

Light Duty 4 forward, 1 reverse

1st Gear: 4:1

25% overdrive

 GM 1/2 Tons

www.tlc.com

MuddinManny

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Old March 23rd, 2009, 09:09 PM   #2 (Link to post)
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they did make a th250 also. the pan looks just like a th350
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Old March 24th, 2009, 04:38 AM   #3 (Link to post)
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What years/models did it come in?
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Old March 30th, 2009, 06:37 PM   #4 (Link to post)
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I not sure.The name follows the old convention for Hydramatic transmissions, where the numeric part is the torque rating. A 305 or any other engine from the late 70s and early 80s would have only made around 250ft-lb of torque anyways, so a TH-250 was good enough to get the job done.
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