need part number!!

Need GM part # for a transmission pan for a 91 RS, 700r4 tans.
thanks

I believe the AC Delco part number is 8667545 , any GM dealer can convert this into a GM P/N. Good luck.
-Blake

If youve got some extra $$, check out the tranny pans by Derale. They have tubes that go through the pan with corkscrews to cool the fluid as you drive. Just bolting one on I noticed a 20degree drop in my trans temp. It runs at 160 or lower now.

Summit and Jegs both carry them.