TM 9-2320-209-20-3-1 5-5. EXHAUST SYSTEM (HORIZONTAL) REMOVAL AND REPLACEMENT (TRUCKS WITH ENGINE LD 427). TOOLS : 9/16-inch wrench (2) 9/16-inch socket wrench 2-inch extension SUPPLIES : Exhaust pipe Exhaust pipe PERSONNEL : One EQUIPMENT CONDITION : a. b. Preliminary Procedures. front gasket extension gasket Truck parked, engine off and cool, handbrake set. (1) Remove air cleaner. Refer to para 4-3. (2) Disconnect battery ground cable. Refer to para 7-58. Removal. WARNING Do not work on hot exhaust systems. Personnel can be badly burned. FRAME 1 . 1. Using 9/16-inch wrenches, unscrew and take three capscrews (2). 2. Take off exhaust pipe extension pipe (3) and gasket. GO TO FRAME 2 off three locknuts (1) and gasket (4). Throw away 5-45