TM 9-2320-289-346-17.1. REAR AXLE DRIVE PINION AND BEARINGS MAINTENANCE (M1028A2) (Con’t).C. INSTALLATION llllNOTEEnsure that all components are lubricated with lubricating oil as they areinstalled,If original drive pinion (5) is reused, new shim pack must be built equal inthickness to original one.Slingers (9 and 17) are considered part of shim pack.If new drive pinion (5) is installed, adjustments in new shim packs’thickness will be required unless the number etched on gear end ofreplacement drive pinion is the same as original drive pinion.1 .Measure thickness of shim (12) and slinger (9) to determine thickness of original buildup at rearpinion bearing (10). Measure thickness of shim (6) and slinger (17) to determine thickness oforiginal buildup at front pinion bearing (8). Record measurements. Discard shims and slingers.Change 16-122,5
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