Question about 2002 GMC Denali

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2002 gmc sierra denali rear axle noies

When im moving and i turn in any direction at slow speeds like 5-10mph i hear a noise that sounds kind of like the sound of too big of tires but it sounds like its coming out of the hub the noise dose not happen every time and it varies from really load to barely hear it, same thing with feeling it too ive been to the dealer and they where no help and im running out of options.
thx for your time

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  • Anonymous Dec 17, 2008

    my denali sounds and feels like the rearend is shucking or fighting against itself at low speeds in forward and reverse. i replaced the right side axle and had a four wheel alighnment done . dtd not help.

  • denalidon Dec 20, 2008

    my truck has a shucking sound that it has made for about 2 years. The dealer said thats how these trucks sound. Tech told me it was the axle because if the grinding were coming from the rear differential, the rear end would have locked up long time ago. not sure what to think now that you say you got a new axle put on your right side and it has not fixed the noise. The noise sounds like it is coming from the right side of my rear end as well. let me know if you find the fix.



    DonACurley@yahoo.com

  • Anonymous Feb 17, 2009

    i too have the denali and have the same noise. dealer doesnt know anything.

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I have a 2002 Sierra Denali, and when it was only two years old, I began having the same issue that it sounds like you guys are describing. Luckily, I had opted for the extended warranty, because it turns out that the lube "specialists" at Wally-World had topped off my rear differential with standard rear-end oil. I turns out that the Denali's differential has a special "clutch pack", as they called it, that requires a secial, senthetic (aka: very expensive) lubricant. The **** WalMart added contaminated the diffy's oil, and caused the clutch pack to fail.... basically it started locking the rear axles, and not allowing one side to rotate at a different speed than the other, as is required in turning.
Well, it took the dealer nearly a month to acquire the neccesary parts for the repair, and as for the cost? Only a minimal deductible, and the dealer assured me that the $1800 extended warranty had paid for itself.... nearly twice!!!
WORDS OF ADVICE: If you own a Denali with AWS, Always instruct the lube guys not to touch your rear differntial! And have your certified GM mechanic check it at recommended intervals.

Posted on Nov 03, 2009

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I had the same noise in mine Youhave to put a posi traction additive in the rear it's available at your GMC dealer its your Posi Clutches stickin when you make turns

Posted on Apr 03, 2013

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