DEFINITION: Axle makes noise when the vehicle is in motion.

Excessive pinion to ring gear backlash exists.

Adjust the pinion to ring gear backlash. Refer to Backlash Adjustment .

The pinion and ring gear are worn.

Replace the pinion and the ring gear. Refer to Pinion Installation .

The pinion bearings are worn.

Replace the pinion bearings. Refer to Differential Case Assembly .

The pinion bearings are loose.

Adjust the pinion bearings. Refer to Differential Case Assembly .

The pinion end play is excessive.

Adjust the pinion end play. Refer Pinion Depth Adjustment .

The differential bearings are worn.

Replace the differential bearings. Refer to Differential Case Assembly .

The differential bearings are loose.

Adjust the differential bearing. Refer to Differential Case Assembly .

The ring gear runout is excessive.

Replace the ring gear. Refer to Pinion Installation .

The oil level is low.

Fill the fluid to specifications. Refer to Lubrication Specifications .

The oil grade is incorrect or poor.

Flush the system. Refill the system. Refer to Lubrication Specifications .

The axle housing is bent.

Replace the axle housing. Refer to Rear Axle Housing Replacement .

The propeller shaft is out of phase.

Refer to Vibration Diagnosis.