brando718 1/7/2013

1999 Chevrolet Camaro Z28 SS 8Cyl5.7L - Transmissions & Drivetrains

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I have a noise coming from the rear of the vehicle. What are common causes?

The noise sounds like an axle Bering and other than being annoying there is no marked loss of performance.

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  1beastlydude 2/1/2013

  is it a constant noise, at any speed, under power? or reverse?
  
  have you checked the gear oil in the rear end recently?
  
  have you greased the u joints recently?

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  HouseCallAuto 2/1/2013

  Yes, you have a bad axle bearing or you have a bad pinion bearing. Hard to distinguish between the two without partial disassembly. In some cases the axle shafts are worn and pitted where they ride on the axle bearing rollers as well. And yes, check the gear oil level, but it is likely that if there is no wet spots on the housing indicating long term leakage, then the unit is likely full.

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