Hey there, newbie to the forum but LONG TIME GM truck guy. I have a 99 GMC Sierra 2500 non-HD with a little over 205,000 on her and have had a chirp out of my rear end forever. I was just wondering if this was standard of the 99 2500 or not. Thanks for your input!


I had a '99 Chevy 3/4 awhile back, but never had any rear end problems.
2010 Z/71 Colorado C/C
Black 4X4 w/5.3L V8
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2007 Winnebago Adventurer
w/8.1L Chevy & Allison 6spd.
Canyon Lake, Texas
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