Question about 2006 GMC Canyon

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When I'm driving down the road, regardless of the speed, and hit a rough spot, bridge overpass, or any medium sized bump my truck starts to shake significantly. This is highway driving. I brought it in and was told that my front end was "tight" but my tires were shot. I only had 40,000 miles on them, but I replaced the tires yesterday. The shaking continued. I brought it back in and had the U joints inspected along with the transfer case fluid, but again everything was fine. I was told to shift into 4H when my truck starts to shake and shifting to 4H eliminates the problem for the short term, but I don't want to drive around in 4H all of the time. This has been going on for less than a week. Today I took it down a rougher blacktopped road and the shaking happened even in 4H. A tap on the brakes is all that was needed to stop the shaking. This is not a vibration, it is a loud, roaring shake that makes me feel very unsafe in my vehicle. Any ideas????

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  • 422 Answers

The bearings in the front end differential are probably going out.

Posted on Nov 20, 2009

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