the problem is if you mount them inside the frame rails like i did. i get soo much down travel on one side, then other side has a lot of uptravel and the tire hits the frame pretty bad. i had to put 2 inch spacers on the ifs housing and 2 1/2 inch BS wheels and the tires still hit the frame (39.5's). I would say get 14's or mount the shocks farther out (cut the frame). and i can't even get my 16 inch fox's to compress all the way because the tires hits the frame. i have about an inch left.