I found in the yard today a super clean complete rear disk brake setup from a 80 cadillac eldorado. I read before somewhere that you can use this on a 7.5 rear also read that scarebird use the cadillac eldorado rear calipers for there kits. So if I grab all of it can I just modify the axle flange like other kits. will they work for me cause I can get all of it basically new for least then 80.00.