TM 9-2320-209-20-3-1 FRAME 7 1. Put exhaust bypass extension pipe (1) on bypass valve (2) with gasket (3). 2. Aline four holes and put in four capscrews (4) and loosely screw on four locknuts (5). IF WORKING ON TRUCK M50A1 OR M50A2 , GO TO FRAME 8. IF WORKING ON TRUCK M50A3, GO TO FRAME 9 TA 080718 5-36