TM 10-3930-660-34 9-5 . REAR DIFFERENTIAL CARRIER ASSIMBLY - REPLACE/REPAIR/ADJUST (Cont’d) ADJUSTMENT 1. ADJUST PRELOAD OF DIFFERENTIAL BEARINGS (15-17). a. Attach a dial indicator on the mounting flange of the differential carrier (2). b. Adjust the dial indicator so that the plunger is against the back surface of the ring gear (18). Adjust dial indicator to zero. CAUTION When turning bearing adjusting rings (12) ,  always use a tool that engages two or more opposite notches in the ring .  A large screwdriver can be used for this purpose .  Failure to engage at least two notches could cause damage to adjusting ring lugs. c. Loosen the bearing adjusting ring (12) opposite ring gear (18) so that a small amount of end play shows on dial indicator .  Move differential assembly with ring gear (18) left and right with suitable pry bars while reading dial indicator .  DO NOT allow pry bars to touch bearings (15-17). d. Tighten bearing adjusting ring (12) opposite ring gear (18) so that no end play shows on dial indicator .  Move the differential assembly and ring gear (18) left and right as needed to be sure no end play is present. e. Tighten each bearing adjusting ring (12) one notch from the zero end play measured in STEP d. 9-26