TM 10-3930-669-34 10-4. DIFFERENTIAL REPAIR (CONT). (15) Install  two  bearing  races  (31  and  32)  in pinion shaft cover (28). NOTE The   pinion   shaft   and   pinion   shaft cover   must   be   assembled    with    a preload  of  0.004-0.005  in.  (0.10-0.12 mm).  This must be determined prior to assembly  of the pinion shaft and pinion shaft cover.  Use pinion shaft flange as a support when measuring distances. (16) Position  bearing  (35),  pinion   shaft   cover (28)  with  races  (32  and  31),  and  bearing (30) on flange (25). (17) Using a depth gauge, measure the distance from the outside edge of bearing (35)  to  the  outside  edge  of  bearing  (30). Record this measurement as Distance A. (18) Remove   bearing    (30)    and    pinion    shaft cover (28) with bearing races (31 and 32) from bearing (35) and flange (25). 10-22