Well got back from the yard, measured it and it is 56.12 wide. So this will let me run a 20x8.5 with a 6 inch backspacing and have 1/4 to 1/2 inch clearance with the wheel all the way up in the rear fender at the top body line. SWEET I can't wait to start on the rear!!!!!!!!!! Here are some pics of what the Mits looks like,this is what the rear come out of.