TM 9-2320-209-34-2-1 12-6. FRONT BRAKE HOSE REMOVAL AND REPLACEMENT. NOTE Original brake hoses will be replaced with modi- fied brake hoses. This task is the same for the left and right front brake hoses. Original and modified brake hoses are shown. TOOLS : No special tools required SUPPLIES : Modified hose kit PERSONNEL : One EQUIPMENT CONDITION : Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Drain brake lines. Refer to TM 9-2320-209-20. (2) If working on truck with original brake hoses, remove steering knuckle boot. Refer to TM 9-2320-209-20. 12-47