[fleetsidelarry]

5 lugs didn't start until '71 but yes the rears got wider sometime in '70 by 3/4" each side, still shouldn't be enough to cause a problem. what is the back spacing on those 8" rallyes. I'm still running the PO's 8" rims with a backspacing of only 2 inches and the PO had to flatten the fender lip for clearance. normal backspacing is 3 1/4" I think which should give enough clearance.