TM 9-2320-209-20-3-3 b. Replacement. FRAME 1 1. Put bracket (1) in place on running board (2). Put four screws (3) through bracket and running board. Start four nuts (4) on screws. 2. Open tool box door (5). Put two screws (6) through bracket (1) and tool box (7). Using wrench, hold screws. 3. Working inside tool box (7) using wrench, screw on and tighten two nuts (8). Close tool box door (5). 4. Using wrenches, hold four screws (3) and tighten four nuts (4). END OF TASK 18-47