Transmission replacement with used

1995 GMC SIERRA
200,000 MILES • 5.0L • V8 • 4WD • AUTOMATIC
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CHEVYBORN
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I am losing reverse and want to just put in a used transmission. I need to know if I.can use a transmission from other years or does it have to be the same year.I have a read conflicting opinions on this matter.I can buy a 1997 but want to make sure it will work.Both transmission s are 4l60e.I think maybe I can use one out of a 1995, 1996,or 1997.would like an expert answer all the GM technicians at the dealership were busy when I called.
Jul 2, 2019 at 6:56 PM
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ASEMASTER6371
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Good morning,

The issue is the plug for the electronic controls. You have an OBD1 system. 1996 and up are OBD2 controlled. I doubt they will work as their electronics are different.

I would stick to the 1995 only to be sure it will work correctly.

Roy
Jul 3, 2019 at 3:22 AM