TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 19-3. DIFFERENTIAL REPAIR (Cont'd) d. Assembly NOTE For general assembly instructions, refer to para. 2-16. Pinion gear depth is the distance from the end face of the pinion to the center line of the output shafts. The dimension is controlled by shims between pinion gear rear bearing cup and differential housing. The pinion gear is etched with two identifying numbers, the first number identifies ring gear and pinion gear as a matched set, the second number represents "pinion depth variance" and is preceded by a plus (+) or minus (-), this number represents the amount in thousandths the gear set varied from the "standard setting" 2.547 in. (6.46 cm). If using original gear set, use original pinion depth shim as a starter shim and proceed to step 4. 1. Measure thickness of original pinion depth shim (9) and record for reference. 2. Check pinion depth variance numbers (8) marked on old and new pinion gears (7) and record for references. 19-11