Need help on my Silverado.. Grinding.. Whirring sound up front in 4WD

Originally Posted by Yunkman

More than likely the CV Joint gone bad.....not that you'll replace it yourself, but this describes it quite explicitly.

Yeah if im not mistaken your chev has an independent front suspension. My truck has a solid axle. Mine has u joints, yours will have CV shafts. CV shafts will snap and pop amd make grinding sounds. But id definately get it checked out by a mechanic asap. Its real tough to diagnose things like this when you cant see em.