Question about 2003 GMC Sierra 1500

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My 99GMC1500 z71 has a rattling noise in the rear end when I take my foot off the accelerator at low speeds. sounds like marbles in the hubcaps. Also, when backing out the driveway in the morning, I get this one time CLUNK from the rearend.

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  • rudydreese Jul 21, 2009

    I have had the brakes and wheel bearings checked at an NTB shop and they could not find anything wrong.

    The clunk that I hear in the rear drive shaft only happens once in the morning when backing out of driveway. It feels like one axle is not meshed in the rear...

  • rudydreese Aug 01, 2009

    This problem has to do with the rear axle or differential. the truck will have a hopping effect at times when driving down a smooth road, similar to a tire that is out of round. I have had the tires checked at two different shops and found no problem with the tires.


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Sounds Like the U-Joints

Posted on Aug 03, 2009

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Is the rattling noise from the exhaust, if yes you need a new silencer or exhaust check.

Posted on Jul 21, 2009

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Hi there, 

Is this noise comes from the rear wheel?

There is a good chance you just need to replace the brakes on the rear.....

f the noise doesn't go away, jack up the rear of the car, grab the tire at the top and bottom and try to wiggle it. A very small amount of play is ok, any more and you need to have the rear wheel bearings replaced. make sure to check both sides for a comparison to each other.

Good Luck!!


Posted on Jul 19, 2009

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