I am going to the rear end shortened by 1 inch on each side, that is what I have read and seems to be the common opinion. Will I be able to tuck 13x7 chinas with skirts? Im sure Daytons will but im not sure if chinas will. Is 1 inch enough, would 1 1/4 each side be to much, would it still fit factory rims and tires without any issues? I have been told that the splines on the 64 axles are long and can be cut down the 1 inch I need and just a new groove put in for the c lip, is this possible? I checked out the other threads but no info on the axles.