[Dwzamberlan]

Having an issuse with one of the front rotor/hub of my ERA 427 (#106). Am using G.M. #334348 rotors with pin (6) drive knock-offs attached. They only have 6,000 miles on them and are original from 1985. Just replaced both master brake cylinders (Leaking), new calipers, new brake pads and repacked the bearings and put in new seals. The passenger side wheel/tire spin smoothly. The DRIVER SIDE wheel/tire spun half way around and then STOPPED. Looking at the outside brake pad, there where scratch marks on the metal concave section of the pad. There were also scratch marks on the HUB of the rotor. The old brake pad also had scratch marks in the same spot. THE HUB OF THE ROTOR IS OUT OF ROUND. NOT THE ROTOR, BUT THE HUB. Just about the time I got the car legal and on the road, I always had a shaking in the steering wheel at 60-75 MPH. Had tires/wheels high speed balanced, and wheel alignment. Still had the shaking of the steering wheel. If the HUB is 1/16 out of round, would that creat the shimmy? I have ground down the high spot, but do not think it will solve the problem. Would like to replace the rotor with something a grade higher than what I have on it now. Any suggestions?
Dennis Z.