TM 10-3930-643-34 GENERAL  SUPPORT  TRANSMISSION  MAINTENANCE.  (cont) 15-3. Transmission Assembly. (Sheet 12 of 26) DISASSEMBLY  (cont) NOTE Do not remove items 135 thru 145 unless  inspection  shows  replace- ment is necessary. 77. Using a scribe, remove ten bushings (135)  and  washers  (136)  from transmission  housing. 78. Remove tubes (137 thru 141), ten preformed packings (142), washers (136) and bushings (135). Discard ten preformed packings (142). 79. Remove pin (143). 80. Using a 3/4" open end wrench, remove plug (144) and gasket (145). Discard gasket (145). Go to sheet 13 15-34