had my 15" alloys on for a couple of days now and the gap between the tyre and front bumper is closer on the drivers side arch than on the passengers arch, were only talking bout 4mm or so but its enough to catch the tyre on the arch when turning the wheel, the tyres are 195-50 profile with bout 3mm of tread. whats the easiest way to fix it and has anyone else had this problem??