i have a BMW 335xi coupe and the BMW dealer said i had 3 bent rims when i brought it in because the sterring wheel vibrates over 60mph. the only rim that isnt bent is one of the rear rims. does the vibrating come from the front rims only since there below the steering wheel? in other words if i just replace the front two rims and have one bent rim in the back will the vibration go away? my other question is, if i do get them all replaced is there any sort of alignment or anything that will need to be done because the car has been vibrating for a month.