hey brad, yeah i need to shorten a e-body rear by 3" on both sides, that will leave me with 1" on each side of the wheel well with the wheel and tire combo i have. the springs are moved in under the frame. so you have the factory style axle bearings and not the green bearings i would rather the factory ones and yeah i guess the rotor would and some length for sure. here is a somewhat close-up of the wheel and tire on the car with the stock rear. thanks for the info. bruce