The parts interchange book shows that there are three different disc brakes spindles for 70 through 74 E body's. Can anybody tell me the differences or how I can find out which one I have and will it make a difference with bearing size or rotors?
3 different spindles?...might just be part numbers?, but basically there's the 70-72 disc spindle with the smaller inner bearing, and this spindle uses the 2 piece rotor, the 73-4 spindle uses the larger inner bearing, and the one piece cast rotor, the outer bearing is the same 70-74, you can use the one piece unicast 73 up rotors on the 70-72 spindles, using the 70-72 inner bearing, but you'll need bearing shell spacer rings, Dr Diff has these if needed, the spindles are identical in all other dimensions except for the spindle shaft diameter differences I mentioned above
Mike
