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Rear diff whine

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Old Dec 3, 2010 | 07:05 PM
  #1  
Bronc1's Avatar
Bronc1
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Mountain Pass
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Rear diff whine

03', 4x2, scab, 4.6L, 4sp, 200K

How many miles can an average owner expect to get from his rear diff?
 
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Old Dec 3, 2010 | 07:53 PM
  #2  
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From: Kansas
So long as the oil is changed now and then, a long time. Having the oil break down can start a whine but you could have a wheel bearing talking to you.
 
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Old Dec 3, 2010 | 09:42 PM
  #3  
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and you probably have the smaller 8.8 axle. 200k would be a believable milage if it has only had minor preventative maint.
 
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Old Dec 4, 2010 | 01:39 AM
  #4  
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As stated, could be a rear wheel bearing. Could also be pinion bearing. Hows the fluid level?
 
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