12-84. TM 9-2320-361-20 1. Remove four pins (10) and tubes (11) from mounting tubes (4). 2. Remove four locknuts (1), screws (5), cargo bracket (9), and four mounting tubes (4) from two angle brackets (3). Discard locknuts (1). 3. Remove four locknuts (7), level washers (6), screws (2), and two angle brackets (3) from frame (8). Discard locknuts (7). 1. Install two angle brackets (3) on frame (8) with four screws (2), bevel washers (6), and new locknuts (7). 2. Install cargo bracket (9) and four mounting tubes (4) on two angle brackets (3) with four screws (5) and new locknuts (1). 3. Install four tubes (11) into four mounting tubes (4). 4. Install four pins (10) through mounting tubes (4) and tubes (11). 12-134