Originally posted by Blue98TA
Maybe check into getting a better gear. Unless you have the Y87 performance package, then I'm pretty sure you have a 3.08. If you can find a posi-3.42 rearend for cheap, it might be worth it.
look at the codes in the door jams. they use the same codes as thier big brother V8.
GU4=2.73
GU5=3.23
GU6=3.42
i dont think many v6's came with the GU6 option. if it is a manual, then it most likely has the GU5 option.
Z28 rears do not swap in as easy as you think. the strut mounts in the back use diffent hardware than the V6. it can be done, but you need alot of extra parts.
Shawn, how is the new rear treating you so far?