My old rear driver side tire had unusual wearing as it was pretty much bald just on the outside. The tire shop replaced the tire and said that I should have the suspension, camber kit checked by the dealer to see if a problem there may have resulted in the balding on just that tire. My car is stock so I have not messed with anything. Will the dealer charge to take a look at this?? By the way my car has 45000 miles if that makes a difference. Thanks for your input