TM 9-2320-209-20-3-1 7-31. BLACKOUT STOPLIGHT ASSEMBLY (RIGHT SIDE ONLY) REMOVAL AND REPLACEMENT (EARLY MODEL TRUCKS WITH TURN SIGNALS). NOTE The blackout stoplight is mounted on top of bracket on some trucks and on bottom of bracket on other trucks. This task is for truck M756A2. It can be used for other trucks. TOOLS: 1/2-inch wrench SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set, main light switch in OFF position. a. Removal. FRAME 1 1. Working from behind light assembly (1), unplug electrical plug (2). 2. Using 1/2-inch wrench, unscrew and take out capscrew (3) with lockwasher (4). Take off light assembly (1). END OF TASK 7-133