Will a different transmission fit in my 2002
Pontiac Grand Prix 3.8 GTP Supercharge
Needs to be the heavy duty HD one out of a supercharged car. May also need to be the same year for the electronics to match. I don't have the exact answer you want, but do know you need to do your homework so you don't buy the wrong one. A transmission shop and some auto wreckers can give you direction on what transmissions will fit.