Using mustang rotors for 4.5" bc

Must be on the ford side or a different setup because I never heard anything about that also. Yea the bolts are smaller and balljoints too but I've driven on that setup for 5 years with alittle under 200,000 miles driving like hell, even twice at the race track in Brainard MN and I live in central ca and had no problems with it whatsoever. IMO it's a great system.