Checks  | Action  | 
|---|---|
Excessive pinion to ring gear backlash  | Adjust the pinion to ring gear backlash. Refer to Backlash Adjustment.  | 
Worn pinion and ring gear  | Replace the pinion and the ring gear. Refer to Drive Pinion and Ring Gear Replacement.  | 
Worn pinion bearings  | Replace the pinion bearings. Refer to Drive Pinion Bearings Replacement.  | 
Loose pinion bearings  | Adjust the pinion bearings preload. Refer to Pinion Depth Adjustment.  | 
Excessive pinion end play  | Adjust the pinion end play. Refer to Pinion Depth Adjustment.  | 
Worn differential bearings  | Replace the differential bearings. Refer to Differential Side Bearings Replacement.  | 
Loose differential bearings  | Adjust the differential bearing preload. Refer to Differential Carrier Bearing Preload Adjustment.  | 
Excessive ring gear runout  | Replace the ring gear. Refer to Drive Pinion and Ring Gear Replacement.  | 
Low oil level  | Fill the fluid level to specifications with the proper lubricant. Refer to Rear Axle Lubricant Level Inspection.  | 
Wrong or poor grade oil  | Drain and refill the system with the proper lubricant. Refer to Rear Axle Lubricant Replacement.  | 
Bent axle housing  | Replace the axle housing. Refer to Rear Axle Housing Replacement.  |