Left.4 DOOR. Right.4 DOOR. upper. A solid metal or plastic block with a threaded hole in the center which is used to secure the Seat Belt Pretensioner to it's mounting point. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the CV Joint Splash Shield. Part cannot be reused/reinstalled. Power Brake Booster Nut. Seat Belt Lap and Shoulder Belt Nut. Tail Light Nut. Window Regulator Nut. CV Joint Splash Shield. HexAGON. Power Brake Booster. Seat Lap and Shoulder. Seat Pretensioner. Tail lamp Assembly. Tail Light. Included with: Regulator, Window Regulator.