Hey All! New to the forum here as this is the first sign of trouble with the truck. I was hoping you could shed a little lite on what I am hearing. It is a 2006 Silverado 1500 4x4 with about 63,000 miles. I am getting an inconsistent grinding noise that sounds like its coming from around the left front wheel. It only happens after I have driven for a while and at relatively low speeds and rpms (20-40mph and 800-1500 rpm). Sometimes happens when going straight but most often with a slight left turn. Typically does not happen when turning the wheel to the right or with hard turns. I put her in 4wd and turned left and right and she really doesnt like that, lot's of grinding there which I had never heard in the past. My guess was hub bearings which would be good news I think as it doesn seem like they are tough to replace based on the research I have done on this forum but I didnt want to buy them until I had some input. Oh, and this just started a few days ago. Any ideas?