2-9. REPAIR. gear shafts, and TM 9-2520-246-34-1 This paragraph gives instructions to repair the transmission case, cover, gears. a. stone. b. c. d. Smooth out any chips, scratches or burrs on gear shafts and gears with a honing Weld Drill Drill retap them. tapped hole. cracks and small holes in housing and cover castings. Refer to TM 9-237. out any bolts or studs broken off in tapped holes. out threaded holes that are When putting transmission stripped or out-of-round to the next larger size and together, use a bolt or stud the size of the newly 2-61