the fender wells on the new 07 and up silverado 1500s bite!!! i own one myself , i had 35s on my old 2001 with just a 3 inch body lift and they never rubbed, and i never trimmed anything, not even the valance, with these new trucks u gota trim stuff even with a 6 inch suspension lift , chevrolet needs to really re think these fender wells, obviously they did not have us off roading guys in mind when they created the new truck. dont get me wrong i love my new truck but geez the fender wells seem to get smaller and smaller over the years