Question about 1999 Dodge Durango

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Differential making annoying whirring sounds.

While driving my 1999 durango a strange whirring sound appears. Drained differential and removed cover only.  Nothing "obviously" wrong. Are there  axle bearings that might be the culprit or what else might be the problem? Also, everything in the brake drums appear okay.

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This noise is caused by the pinion bearing in most cases, of course without removing the bearing to look for pits in the race it is at best an educated guess.

Posted on Feb 15, 2009

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I hope my solution is very helpful and prevents your parts from having further damage. I had 161,000 miles on my Crown Vic, and it was running strong when sold.

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  1. Raise and support vehicle. Ensure that the transmission is in neutral.
  2. Remove wheel and tire assembly.
  3. Remove brake drum. Refer toBrakes, for proper procedure.
  4. Clean all foreign material from housing cover area.
  5. Loosen housing cover bolts. Drain lubricant from the housing and axle shaft tubes. Remove housing cover.
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