For 1990-2009 cars

Cause | Correction
--- | ---
DEFINITION: A noise heard during acceleration load.
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 .