Mechanics

GMC YUKON NOISE PROBLEM

2004 GMC Yukon

Drive Train Axles Bearings problem
2004 GMC Yukon V8 All Wheel Drive Automatic 56848 miles

ive taken my yukon denali to 2 reputable mechanics for this noise and they both told me there I nothing wrong with my truck mechanically. Drove both of them on the freeway and they said sounds sorta like a harmonic viration noise. So here it is, when I go on the freeway after 50 mph there is a noise that sounds like when the brake pad is going out, like a slight squeel or a shhhhiiiiiing.I changed the front ring and pinion used royale purple gear oil, the noise went from a 4-5 to 1 in noise level. Ok makes the noise at 45 arounnd town after freeway driven but no noise below 40mph. Are the gears making the noise?Seems to be from the right front. Or is it a harmonic vibration? Please help
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Terry2010
June 23, 2010.




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