VI.  STEERABLE DRIVE END ASSEMBLY H. Wheel Hub Assembly 1. Assemble the wheel bearing cups and the outer axle shaft drive studs to the wheel hub. 2. On disc style wheel hubs: Press  wheel  studs  into  place.    Left  thread studs go into the left hand hub, right hand thread studs into the right hub. On cast spoke style hubs: Assemble the brake drum to the cast spoke hub  and  secure  with  bolts,  washers,  and  nuts. Tighten  bolts  to  correct  torque.    Install  the  rim studs to cast spoke hub. 3. Pack   the   inner   wheel   bearing   cone   with   the proper lubricant and insert into the wheel hub. 4. Coat the outside circumference of the wheel hub seal with liquid sealant and press into the hub. 5. Pack   the   cavity   between   the   inner   and   outer wheel  bearing  to  level  of  the  small  diameter  of the bearing cups. 6. On disc style drum: Adjust the brakes to match closely, but still clear the brake drum. On cast spoke hubs: Adjust the brakes to match the brake drum by using a brake shoe adjusting gauge. Measure   the   I.D.   of   the   drum   and   adjust   the brakes to match the gauge reading.  The gauge is available from the McMaster-Carr Supply Co., Los Angles. 7. Position  the  wheel  hub  or  cast  spoke  hub  and drum    carefully    over    the    spindle,    brake    and spindle  yoke  assembly.    (See  fig.  17).    Rotate the hub while positioning over spindle. 8. Pack the outer wheel bearing and install over the spindle. 9. Install    the    wheel    bearing    adjusting    nut    with dowel,   if   used,   dowel   facing   outward   (or   up). (See fig. 16). 10.  Adjust the wheel bearings per III-B. I. Outer   Drive   Yoke   and   Outer   Drive   Axle   Shaft Assembly 1. The outer drive yoke should be complete with a bearing   race   pressed   on   its   hub.      This   race should  not  have  been  removed  at  disassembly unless either the yoke or race were replaced by new parts. 2. Lubricate  the  seal  and   bearing   surface   of   the outer drive yoke and put the yoke in place in the bearing  and  seal  that  is  in  spindle  yoke.    (See fig. 37). 3. Apply  a  bead  of  liquid  sealant  to  the  outer  axle shaft flange.  See Service Bulletin 738 407, Page 22. 4. Install  the  yoke  spacer  ring  onto  the  outer  axle shaft  splines.    Insert  the  shaft  into  the  spindle bore,  rotate  and  align  the  splines  with  the  drive yoke  splines,  rotate  the  shaft  and  yoke  to  align the  flange  holes  with  the  drive  studs.    (See  fig. 38).    Insert  the  long  (2  inch)  yoke  retaining  bolt through    a    new    sealing    washer,    through    the retaining  washer  and  into  the  threaded  hole  in the shaft end.  (See fig. 39).  Tighten to specified torque. 5. Push  axially  on  the  outer  drive  yoke  and  check for    positive    clearance    under    the    axle    shaft flange.    The  clearance  should  be  at  least  .015- inch.  (See fig. 40). 6. Install   the   locknuts   to   retain    the    axle    shaft. Tighten to specified torque. 7. On  oil  lubricated  wheel  bearing,  turn  wheel  hub to position the oil plug hole in the outer axle shaft horizontally.  (See fig. 41).  Fill hub with specified oil, install plug. 8. Install the hub cap. Fig. 37 - 18 -