Dont you have a 8.2 10 bolt(80 Camaro)not a 7.5?I have a richmond 4.10s,seriously I have broke 3 posi's,a gear set,driveshaft,and a set of axles.Now it has a zexel diff.,richmond 4.10,moser axles,steel 3"driveshaft. I think maybe I hurt the housing the first time it broke,it's never been the same since then. I have a Moser 9in. in my garage waiting on a center section.The reason I didn't do a 12 bolt or 9in. before was the wife wasn't very understanding,until she took it down the track now she wants it fixed so she can go again!