Front/Rear Differential May Develop Noise Due to Worn Bearings on GMC Yukon Denali

The front or rear differential may develop an abnormal noise due to worn bearings or another internal fault. Our technicians tell us that a complete overhaul of the affected differential is commonly necessary to correct this condition.

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Average mileage: 145,061 (80,000–248,000)
Drive Trains affected: 2WD, 4WD
10 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2007, 2008, 2011
25 people reported this problem
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problem details
2001 GMC Yukon Denali - 4WD 90,000 mi,
After 30 or 40 miles on freeway, whinning sound from front end. Gets louder but levels off. When you slow down, sounds like metal grinding, REALLY bad. If you turn at low speeds, gear skipping feeling, wheels shake. If I let the truck sit and cool for a few hours, its ok, until 30 miles of freeway, even at 60mph. This is the second time with this issue. Replaced differential twice; at 63,000, then 90,000 before, and here again at 98,000. Hate this truck. $50,000 piece of junk. My 98 Pontiac was 3500 bucks, and I drive it instead. I will never get 100,000 miles on this Denali, because I can't drive it!
2008 GMC Yukon Denali - 2WD 140,000 mi,
Rear end whining when on the gas, quiets out when you let off... getting repaired by a local transmission shop.
front end making a winding noise
2007 GMC Yukon Denali - 4WD 208,000 mi,
The front wheel drive sounds like it's making all kinds of cranky noises grinds when I turn when I take off really hard it's just not a good thing
2003 GMC Yukon Denali - 4WD 165,000 mi,
Grinding noise in rear
2008 GMC Yukon Denali - 4WD 80,000 mi,
front differential went out after I was initially told it was a bad axle. Repair cost quadrupled
Left front differencial is making old noise
2002 GMC Yukon Denali - 4WD 140,000 mi,
R front differential shot - Expensive to fix.... $3K. Reliable car! Repair or replace
2000 GMC Yukon Denali - 4WD 210,000 mi,
sounds of crackling or like popping rocks under truck when started up and on acceleration but then on idle you cant rerally hear it
1999 GMC Yukon Denali - 4WD 248,000 mi,
Actually mine is a SLT but anyway on a recent vacation i drove from MN to VA & back to MN. Over this time some of the gear oil leaked out i assume due to a failed seal. On the way home the front differential became louder and louder especially when de-accelerating. Still driving it this way (it hasnt been quite a week ) but looking into get it repaired within the next few days.
2007 GMC Yukon Denali - 4WD 145,000 mi,
front wheel bearings replaced because of bearing noise. Problem not fixed. Fluid change on front differential revealed alot of metal on magnet. Front taper bearing worn.
1999 GMC Yukon Denali - 4WD 200,419 mi,
Replaced the rearend
2003 GMC Yukon Denali - 4WD 173,000 mi,
waiting on diagnoses. It definitely seems to either be differential bearings or the transfer casing