I have a B-body 8 ¾ rear with 11 x 3 brakes. Im going to have it narrowed to stock A-body size. Do I need to make the housing and axles narrower to fit the 3 brakes? Stock A-body 8 ¾ came with 1 ¾ brakes. It seems like I would want to narrow 1 ¼ on each side more than stock A-body...