Originally Posted by 77bronco_ed
Outside bulge to outside bulge...I was going to allow .5" of clearance from inner wheel lip per side. Do I need to add anything extra since they will not be under the weight of the vehicle?
2" clearance bulge to frame, that sounds like quite a bit... I was thinking 1" was conservative. Why so much? there should not be any items protruding from frame rail near tires. I'll need to move the frame inboard at least 2.5" per side inboard.
backspacing is 5" on 15 inch wide rims
The Rear suspension has to articulate also, not just up & down. Think about when you jack up just one side of a car.