TM 10-3930-660-34 9-5 . REAR DIFFERENTIAL CARRIER ASSEMBLY - REPLACE/REPAIR/ADJUST (Cont’d) c. Install eight capscrews (33) finger tight. d. Fasten a fabricated yoke nut tool (App .  B ,  Fig ,  C-5) to companion yoke (9) .  Use a fabricated yoke nut tool (A) to hold bevel pinion (29) in position when nut (31) is tightened. e. Torque nut (31) on bevel pinion (29) to 300 - 400 lb .  ft. f. Remove bar from companion yoke (9). NOTE Do not read starting torque .  Read only torque value after bevel pinion (29) starts to rotate .  Starting torque will give a false reading. g. Attach a lb .  in .  torque wrench on bevel pinion nut (31) .  Rotate bevel pinion (29) and read value indicated on torque wrench .  New pinion bearings should be preloaded between 5 and 45 lb. in .  of torque .  Reused pinion bearings should be preloaded between 10 and 30 lb .  in. 1) Increase bearing preload by removing bevel pinion (29) from bearing cage (30) and installing a thinner bearing spacer (40) .  Repeat STEPS a. through g. 2) Decrease bearing preload by removing bevel pinion (29) from bearing cage (30) and installing a thicker bearing spacer (40) .  Repeat STEPS a. through g. 9-16