The Haldex ModulX DB22LT Air Disc Brake slides on four stainless steel slide pins, providing a more compact, stable design than the standard two-pin design. The stainless steel pins increase corrosion resistance and require no lubrication, the company says. Two tappets equally distribute brake pad clamping force to ensure even wear. The DB22LT is an optimized disc brake design, engineered specifically for common heavy duty applications. It outperforms standard S-cam drum brakes in practically every category and saves about 18 pounds per brake over previous ModulX versions, the company says.