Looking for feedback from folks who have '03's running 315-70R17's mounted on 17" rims with 4-1/2" (or less??) of backspacing: Do they rub on the rear portion of the front fender or on the front bumper/air dam? Under what circumstances? What rim width do you have? I'm just not too excited about how my 315's look on the stock rims, but I don't want to hack the fenders just to use aftermarket wheels... ??? [undecided]