I have a 14 Sierra 1500 w a 7" RCX lift. I'm running 37/18x13.5's w 2" spacers on oem rims for now. I've cut the inner fenders as much as I can and still get somewhat of a rub when flexed. If I throw on the 1.25" body lift that u guys sell will that stop my rub problem? If so, what's the cost of such? FWIW... If I only run a .25 spacer I don't have any rub problems.