I just reinstalled my th350 in my 72 Cutlass S Sports Coupe. I've seen many posts saying my tranny should be a 3 speed. It seems to only shift to 1 lower gear. Does this mean I have a powerglide 2 speed? Vacuum modulator is on the passenger side, also kickdown there as well.

 

This is an Oldsmobile ST300/ 2 speed transmission and pictures of other transmission pans. Which do you have?

 

Recently bought this pan gasket that fit perfectly. Looks like a th350. Thanks for the reply!

 

If the trans is original to the your car, then it is a th350.

 

Regardless, it is not a Powerglide.