Replace your factory brake backing plate with Trail-Gear backing plate eliminator kits. These TG spacer rings are the same thickness as your stock, and they take their place to eliminate trail damage and small rocks from getting trapped between the plate and rotor. Are you still cutting the center out of your stock plate? Next time you're servicing the knuckle, install Trail-Gear backing plate eliminator kits for a cleaner way to accomplish the same thing.