I have 31-10.5 all terrains with 2 inch coil spacers and they fit great all I had to trim was the metal lip inside the fender that goes on the firewall I cut that flat about half way up and just welded it flat because they have pinch welds on the part I cut off and on the fender i cut from the front lower fender bolt to the outside of the fender at an angle so you can't see the cut at all from the outside and the back is fine, but It all depends on your offset of the wheels mine just work out when I flex they tuck perfectly in the back. hope this helps