TM  10-3930-643-34 FRAME  AND  TOWING  ATTACHMENTS  MAINTENANCE.  (cont) 10-2. Frame Hinge Pin and Frame Assembly. (Sheet 13 of 13) INSTALLATION  (cont) 68. Using  a  hammer  and  drift,  install spacer (12). 69. Using  a  large  rubber  mallet,  install shaft (11). If  necessary,  drive shaft  (11)  into  frame  with  hammer and  drift. 70. Using  a  1-1/8"  socket  and  socket wrench  handle,  install  spacer  (10) and bolt (9). 71. Using  a  3-1/16"  socket  and  socket wrench  handle,  install  nut  (8). 72. Using a 15/16" socket and socket wrench  handle,  install  retainer plate (7), two washers (6) and bolts (5). NOTE The following step must be done after  upper and  lower  hitch bearings  have  been  replaced. 73. Adjust front and rear frames, refer to  Adjustment  procedure. 74. Install  steering  linkage,  refer  to TM  10-3930-643-20. 75. Install transmission to bearing hanger  propeller  shaft,  refer  to TM  10-3930-643-20. 76. Lubricate with clean grease. Install lubrication  lines  and  fittings. NOTE Return M10A Forklift to original equipment  condition. END OF TASK 10-18