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Old 12-23-2008, 11:31 AM   #1
2003MercMaraude
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Default 2001 SL2 auto trans into 1993 SL2

Will a 2001 SL2 auto trans drop into a 1993 SL2 with no problems? I know that for regular GM's the auto trans's like the 4T60E were very year-specific because certain years used PWM TCC lockup, some didn't, ratios changed, etc. I didn't know if I would be facing similar compatibility problems with my 1993.

Thanks

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Old 12-23-2008, 12:04 PM   #2
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Default Re: 2001 SL2 auto trans into 1993 SL2

Ratios are different.
http://www.differentracing.com/tech_...gearratio.html

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Old 12-23-2008, 12:48 PM   #3
2003MercMaraude
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Default Re: 2001 SL2 auto trans into 1993 SL2

According to those charts the gear ratios for the two year range MP7's are the same but the final drive is different. Crap. It would probably work but the speed signal to the PCM would be wrong. Thanks

Steve

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Old 12-27-2008, 06:58 PM   #4
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Default Re: 2001 SL2 auto trans into 1993 SL2

I'm pretty sure the gear ratio is not the thing to worry about. I put a '97 auto trans in a '98 and it worked fine despite the different gear ratios. However, an 01 transmission will not swap into a '92. As I recall, '94 to '02 will swap. '92 from a certain vin will swap to a '93. '92 to that vin swaps with a '91.

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