Find a salvaged Getrag, Maybe $350.00.
You will need different half shafts, the splines at the diff are different.
If it looks like it has not sat out in the weather and has no grit in the axle holes or better yet they covered them, and is smooth to rotate all the way around. Do it nice and slow. The more you know about it the better.
Then check back-lash like this at this point, if you get 0.015 or less your OK. .008 would be like new.
Then upgrade the clutches & springs to the Z06 parts. I have opened three Getrags with 35k miles or more and the the oil was black with friction material and both springs cracked.
Do it right, do it once.
You will need different half shafts, the splines at the diff are different.
If it looks like it has not sat out in the weather and has no grit in the axle holes or better yet they covered them, and is smooth to rotate all the way around. Do it nice and slow. The more you know about it the better.
Then check back-lash like this at this point, if you get 0.015 or less your OK. .008 would be like new.
Then upgrade the clutches & springs to the Z06 parts. I have opened three Getrags with 35k miles or more and the the oil was black with friction material and both springs cracked.
Do it right, do it once.