I have 18 X 10 inch rims on the way for my 03 cobra, planning on running 315s of some sort, probably BFG. I know I'm gonna need spacers, I'm looking for a wide stance. My question is, what size spacer should I go with? Just go with a 3/8, or would something like 1 inch be too much? I tried searching but couldn't find a direct answer.