The way to avoid this is to make sure you have wheels with the proper offset and backspacing for the tire you'd like to run on your truck. First, let's define what each is. Backspacing is the distance from the inside bolting surface of the rim to the outer edge of the inboard side of the rim. Offset is the distance from the exact center of the rim to the outer edges of the rim. Positive offset means that the center of the wheel is moved towards the vehicle.