TM 9-2320-209-10-1 4-8. OPERATION OF CARGO TRUCKS. a. General. The cargo trucks covered in this manual are equipped with a 12-foot steel bed, removable front and side racks, and a hinged tailgate. They are designed to accept a tarpaulin cover for cargo protection. b. Removing the Front and Side Racks. FRAME 1 1. Take hooks (1) out of retainer slots (2) on both sides of truck. GO TO FRAME 2 _______ 4-77