TM 9-2320-209-20-3-4 b. Replacement. FRAME 1 1. Aline exhaust inlet on oil pan shroud (1) with exhaust tube (2). Push oil pan shroud up and hold it in place. 2. Aline four screw holes in oil pan (3) with screw holes in oil pan shroud (1). Using 9/16-inch wrench, screw in and tighten four capscrews with washers (4). two on each side of oil pan shroud. 3. Using pliers, put in cotter pin (5) and bend open ends of cotter pin. END OF TASK 23-29