In 1997 the transmission on my '85 TA was replaced at a GM dealer. Presumably it was a GM transmission and hopefully the same as what it replaced but I can't tell form the description on the invoice and can't find much on the net except references to GM performance transmission.

The part number was 8648942. Anyone have any info on that part number and perhaps what transmission it is?

 

a GM reman 700-R4. Probably the early one, like for an 85 or 86.

 

87 actually. After I posted this I remembered I had bought the full parts catalog for 82 to 88 and when I looked it up in that, there it was.

Thanks.