i have a 92 z28 with the G92 option which is the performance rearend, but how much power can it handle before i have to get a new one? could it handle about 380 hp and 450 tq? your comments will help me greatly, thanks

 

Dude, go get a 9" Ford. You will more than likely grenade that poor, stock, defenseless rearend with that much power flowing through it IMHO.

 

They seem to survive reasonably well in 4th gens with LS1s... I don't know what you're planning on putting in there, but that HP and torque level doesn't sound out of bounds to me, as long as you don't do the usual destructive things like 5000 RPM clutch dumps into slicks, speed shifting, etc.

 

I'll have to agree w/ RB. Just like the 700, the 7.5" 10-bolt has earned a bad rap that I don't feel it deserved. Granted, a 10 bolt has NOTHING on a Ford 9" or even a 12-bolt, but if done correctly, its still a decent rear.
The last rearend I built, before doing mine, was put in an '84 Camaro Z28 and it made several 12.5 second passes on slicks and was still driven as a daily driver afterwards. I have personally seen some faster times than that on the 7.5" rearend. Its all in how you build it, and drive it.

 

thanks alot guys for your replies, you made me feel alot better in keeping the stock rearend, at least for now