Cause  | Correction  | ||||||
|---|---|---|---|---|---|---|---|
DEFINITION: A noise heard during acceleration load.  | |||||||
The differential drive pinion to the ring rear backlash is excessive.  | Adjust the differential drive pinion to the ring backlash. 
 
 
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The differential drive pinion and ring gear are worn.  | Replace the differential drive pinion and the ring set. 
 
 
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The drive pinion bearings are worn.  | Replace the drive pinion bearings. 
 
 
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The drive pinion bearing preload may not be within specifications.  | Adjust the drive pinion bearing preload. 
 
 
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The drive pinion end play is excessive.  | Adjust the drive pinion bearing preload. 
 
 
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The differential bearings are worn.  | Replace the differential bearings. 
 
 
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The differential bearing preload may not be within specification.  | Adjust the differential side bearing preload. 
 
 
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The rear axle lubricant is low.  | Add lubricant to the rear axle. Refer to Rear Axle Lubricant Level Inspection .  | ||||||
The rear axle lubricant is incorrect.  | Replace the rear axle lubricant with the proper lubricant. Refer to Rear Axle Lubricant Replacement .  | ||||||
The rear axle housing is bent.  | Replace the rear axle housing. Refer to Rear Axle Housing Replacement .  | ||||||