ive got a 99 f250 superduty 2wd, i have 7 lug wheels and i have to order brakes from the regular f250 but im wondering if i swap to an 8 lug rear end (diff is shot, butstill drivable think its a busted posi) will the superduty rotors fit on my spindle? i will probably have to get new calipers which i figured but i just dont know if i can swap to actual superduty brakes which are a lot bigger...