Hi, I am looking for some help on tire sizes. I am about to dig into the car and swap in a 5 lug conversion. I have an 88 GT hatch. Here a list of whats going on and what I am looking for. Ok, ranger/bronco 2 rear axles w/ drums (for now) tubular rear control arms, quad shock will be history, 1" lowering springs and a set of factory mustang bullet 17" wheels. I don't have a problem with rolling fenders, I am just to give me a little more room and to be on the safe side. I am running stock size tires on the front 245/45. I was wandering of anyone could help figure out the widest tire I can run staying the same height as the front tires. Thanks.