| Incorrect pinion to ring gear backlash |
Adjust the pinion to ring gear backlash. Refer to the following procedure: Backlash Inspection and Adjustment |
| Excessive ring gear runout |
Replace the ring gear. Perform the following procedure: Front Differential Assembly Replacement |
| Worn pinion and ring gear |
Replace the pinion and the ring gear. Perform the following procedure: Front Differential Assembly Replacement |
| Worn pinion bearings |
Replace the pinion bearings. Perform the following procedures: 1. Front Differential Drive Pinion Gear Inner Bearing Replacement 2. Front Differential Drive Pinion Gear Outer Bearing Replacement |
| Loose pinion bearings |
Adjust the pinion bearings preload. Refer to the following procedure: Pinion Depth Adjustment |
| Worn differential bearings |
Replace the differential bearings. Perform the following procedure: Front Differential Bearing Replacement |
| Loose differential bearings |
Adjust the differential bearing preload. Refer to the following procedure: Differential Carrier Bearing Preload Adjustment |
| Low oil level |
Verify the oil level is correct. Refer to the following procedure: Front Axle Lubricant Level Inspection |
| Wrong or poor grade oil |
Drain and refill the system with the proper lubricant. Perform the following procedure: Front Axle Lubricant Replacement |