I am thinking about purchasing a set of American Republic Wheels for my 73 L stock body. Front size would be 17x8. Rear size would be 18x11.5. This way I could run either a 315/30/18 or 335/30/18 rear tire. What would guys recommend for back spacing? I was thinking 7" b.s. or 6.75? I don't want them to stick out. Any suggestions or fitment issues? Does anyone know the b.s. on the Pantera East 18x12.5" wheels?