[joyridin']

The C3 rear ends were just GM corporate 10 bolt rear ends. If you had a big block, they added bigger axles and an Auburn LSD, but it was still a GM 10-bolt. If you have over about 550 hp, even with the Auburn LSD, they will not hold up. Most Corvette owners with a decent amount of horsepower have done a 12 bolt conversion using the 10 bolt housing. It takes some machine work to get it to work, but now you are set for 1000 hp.

Not a bad deal for a small block, but I doubt I would use it behind some of the big blocks I have seen people on here build.