The Ford 8 in rear end in my roadster has a negative camber that is creating issues with my new disc brakes. Is a negative camber normal with these rear ends? If so, how much is normal, and how do you align the calipers with the rotors? Right now I have the caliper mounting brackets shimmed to allow some measure of alignment. but it's not in perfect alignment with the rotor. Am I on the right track here with the shimming and this is all normal, or do I have to do something to this rear end to parallel the axle housing flanges with the axle flanges????