I have a 67 buick and I've found a '71 8.5 rear end. I believe I loose 1" of outer fender clearence, on each side, if I were to use it. Can you make the difference up by getting a wheel that has 1" of extra backspacing?
You should really post this in the "Got Gears" forum, you'll probably get some responses there. Maybe one of the moderators will move it for you.
