I have no trouble with 245-45/16's on UrS4 16x8 rims. Had to nick the control arms as they just touched on the left front. I now use a 15 mm hubcentric spacer (wider in the front theory) and have gotten as much as 255-50/16's on, althought the rear is _very_ tight (inner rear fender liners removed). HTH Regards, Jerry 91 200q avant