all the internals are the same. the only difference between the two trannies is the bell housing. even then, I dunno if the 350 vortec and the 350 LT1 have different bell housings. they might be the same.
1996 Firebird 3800 Series II, T5 swap RIP 3-31-11
It lives on: Engine and trans from ^ are now in v
1996 Firebird 3800 Series II, T5