Diff Swap Question

[Boss Hogg]

Ok I have a 4t65e in a 1999 grand prix that i am putting a supercharged engine into, I also have a 4t60e HD trans out of a 96 supercharged riviera, as far as i know this is a rare option on 96 supercharged GM models only, my question is can i use the diff, the cover and right axle shaft out of the riviera for my grand prix? Also should I use the torque converter?

[Fivefingerdeathpunch]

Honestly it's not even worth the swap.

I'd rather just keep the 3.29 gearing in the GT, we are only talking a slightly stronger diff in the supercharged cars. Not enough to make a huge difference, you likely won't smoke the diff anyway when the transmission blows up. The input shaft or massive slipping happen far more often.

[99GT2dr]

Yeah, the diff is rarely what ends up getting destroyed. I'd be more worried about the input shaft snapping on 3-1 downshifts. The L36 converter is lighter and is a bit looser, I'd use that if you have new hardware to swap flexplates. Or flip a coin and reuse the old bolts with red loctite.

[Boss Hogg]

Alright thanks for the input, i haven't heard from anyone i know about the diff going bad anyway. The trans in my grand prix was already rebuilt before i got it, i think it has less than 50k miles on it but not sure and i probably will reuse the converter that is in it already.