How much HP is your engine making? The 8" rear is not bulletproof like the 9" rearend. I would switch to the 9" if you're going to be producing more than 300hp.
I'd suggest you join a local Mustang club. It's the best source for parts besides ebay and Craigslist.
Currie Enterprizes makes a limited slip rear for the 8" that is bolt in with not mods required to the drivshaft for around $1100.
__________________ 1967 Mustang Convertible - 289-4V with a C4 Automatic. 1992 Bronco - 302 EFI Automatic "When they call the roll in the Senate, the Senators do not know whether to answer "Present!" or "Not Guilty!" Theodore Roosevelt |