i looked through old post and still have question. im running jason cup with re7 up front with a 235/45/r18 i think it ='s 25.4 tire height. im in the middle of removing the wheel wells and when i let the truck lay it looks like the bags dont have enough room. i heard 3 inch is what most bags need.. what to slams need? should i cut cup? how much do i cut out?