I have a 69 Camaro rear axle assembly on my 68 Bird, I was a bit pissed off when I discovered it was a Camaro instead of a BOP. I thought I'd grenade the Chevy rear with the torque of the 464/428, but it's held up, well almost, for the 18 years I've been driving it. I don't like the C-clip rears, I had an axle depart from a car once, the axle along with wheel an tire almost took out a Honda which was driving in the opposite direction across a 30 foot median, but this one has mostly held up, with one exception. Spacer shims came loose and the axle splines started to grind metal. I had to tear the whole thing down and redo it. I added a girdle cover to it at that time. One thing about the Chevy rear that was an unknown to me advantage, they are 1" narrower than the BOP. I was able to get the wider tire on without it rubbing on the fender lip.