Whiteline's differential bushing solutions ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels. Product Features:Articulation voids deliver necessary suspension articulation and/or compression under loads.Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.Internal grease reservoirs provide continual self-lubrication for optimum friction management.