Two problems related to front suspension wheel bearing have been reported for the 2003 Chevrolet Silverado. The most recently reported issues are listed below.
Right front wheel bearing had to be replaced at 49,000 miles-was so bad the wheel almost fell off according to mechanic that repaired for me.
Both wheel bearings on the front axle failed on our 2003 Chevrolet Silverado 2500hd 4x4 4-door pickup. It has 39,000 miles and has been used in light duty situations only (primarily highway driving with light towing). A large squeak developed over a three week period when turning right corners. Our local mechanic found that both front wheels, especially the drivers side, were close to falling off the truck. Even though it was out of warranty, the local dealer replaced both failed mechanisims without question with in stock parts. A little odd that they would have multiple sets of front hub assemblies in stock on last year's model, don't you think?.