i have a 8 1/4 and want to upgrade. can anyone tell me what years and models will bolt right in? i would also like disc brakes in the rear, is there anything out there that could fit, even a ford 9''?
any abody 8 3/4 will fit but since yours is a 75 you will need one with big bolt pattern axles i think that is probably what your 8 1/4 would be. the 72 and older factory 8 3/4 for the a body were the small bolt pattern setups so if you get one of those you would have to change axles.