TM    9-2320-273-20 Section II MAINTENANCE ALLOCATION CHART FOR TRUCK, TRACTOR, M915, M916, AND M920 AND CHASSIS FOR M917, M918, AND M919 (Continued). (2) COMPONENT/ASSEMBLY REAR AXLE (Continued) Differential  and  Carrier Filter Flange,  Companion  Drive Pinion Seal, Oil, Drive Pinion Bearing Rear Axle Shaft, Right or Left Differential  Lockout  Air Chamber Pusher Axle Air Bags Lift  Cylinders BRAKES Park Brake Assembly Foundation   Brakes Brake Shoe Assemblies Slack Adjuster S-Cam  Mechanism (3) MAINTENANCE FUNCTION Replace Repair Overhaul Inspect Replace Inspect Replace Inspect Replace Replace Repair Replace Inspect Service Replace Repair Replace Replace Inspect Adjust Repair Replace Inspect Adjust Repair Replace Replace Replace (4) MAINTENANCE CATEGORY C O F H D 9.8 9.8 11.8 0.1 0.2 0.1 1.0 0.1 1.5 3.5 1.0 1.0 0.1 2.0 6.0 6.0 1.0 1.0 0.1 0.5 0.8 1.4 1.0 0.5 3.5 3.0 0.3 3.0 (5) TOOLS AND EQUIPMENT 87-88-90 thru  95-186- 187 (6) REMARKS M917, M919 & M920 Rear Only Includes Shoe  Spring Rear Only Rear Only B-13 ( 1) GROUP NUMBER