3369 Andersen WD Bracket set RAISED 3", 4", 5", 6" (2 inside, 2 outside w hardware) for low frames Step It is rated to the plastic It is rated to the vehicle's maximum gross trailer weight capacity and provides a custom fit for certain years of the Chevrolet Silverado 2500 or 3500 with old body style There is nothing more inconvenient than switching back and forth between a few different ball mounts and trying to remember which mount fits with which trailer 2 outside brackets and mounting hardware as shown in picture The holes of the 'Raised' bracket are reversed to keep the bottom of the bracket closer to the trailer frame