12-104. TM 9-2320-361-20 This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) M756A2 TM 9-2320-361-10 MATERIALS/PARTS TM 9-2320-361-20P Four locknuts EQUIPMENT CONDITION Parking brake set (TM 9-2320-361-10). Remove four locknuts (6), screws (3), washers (4), and step (2) from toolbox (1) and cab protector (5). Discard locknuts (6). Install step (2) on cab protector (5) and toolbox (1) with four washers (4), screws (3), and new locknuts (6). 12-171