TM 9-2320-209-20-3-2 16-4. REAR LIFTING TOOLS: 3/4-inch SUPPLIES: None PERSONNEL: One SHACKLE REMOVAL AND REPLACEMENT. wrench (2) EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Removal. 1. Using wrenches, hold three nuts (1) on front side of rear frame (2) and unscrew and take off three screws (3) and nuts (1). 2. Take off shackle assembly (4). END OF TASK 16-8