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Singing Rear-end

Super 8

By Super 8
April 29, 2010 in 2000-2014 Silverado HD & Sierra HD

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Super 8

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Super 8

Posted April 29, 2010

Posted April 29, 2010

I purchased my 2001 GMC 2500 HD new, it now only has 54,000 miles. I noticed the rear-end tends to be worse as far as a singing/howling noise though second gear, which is a automatic. I have serviced it @ 20,000 miles with fresh synthetic oil. One odd thing that happened last winter when towing was my hanger bearing went out. Any input would be great, thanks Les........

markw8

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markw8

Posted April 29, 2010

Posted April 29, 2010

What is a hanger bearing?

Mark

Super 8

Enthusiast

Super 8

Posted April 29, 2010

Author

Posted April 29, 2010

What is a hanger bearing?

Mark

700 sportsman

Senior Enthusiast

700 sportsman

Posted April 30, 2010

Posted April 30, 2010

Well, I don't think it is your G80 specifically, but it may be your differential bearings, but I'm not pro so I'm just throwing that out there

JoJoJim

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JoJoJim

Posted April 30, 2010

Posted April 30, 2010

I assume the center carrier bearing

Super 8

Enthusiast

Super 8

Posted April 30, 2010

Author

Posted April 30, 2010

Yes, center carrier, one piece drive shaft.

Has there been some bad differential bearings and or races getting warped at install?

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