Left.CREW CAB. Rear bracket nut. Right.CREW CAB. TYPE 13- ANGULAR. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Skid Plate. Battery Tray Nut. Radiator Support Splash Shield Nut. Running Board Nut. Spring. Battery Tray. Cover panel U -. End panel U -. Motor and Amplifier; drive. Powertrain Skid Plate. Radiator Support Splash Shield. Reinforce bar. Retainer. Included with: Front Plate, Running Board.