at 90000 I noticed excessive tire wear and kept hearing clunking in the front end .I thought it was a sway bar bracket and took it in to be checked .I was told both upper and lower ball joints on both sides needed replacing as well as two tie rod ends The worst part yet is to replace the upper ball joints you need to replace the whole upper control arm with bushings of coarse .Of course adding insult to injury my mechanic explains to save cost GM out sourced the ball joints to some third world country to save money for them, which will now cost us .And it doesn't help that the trucks don't have grease fittings in OEM parts. The new trucks may look good , but they aren't Chevy Tough like my 2001 Suburban.176000 miles and the ball joints are still good . Maybe when the wheels fall off the front of a few trucks and cause injuries GM will get back to making tough trucks again . Some bean counter will figure out it's better to make a tough truck , than to try and explain why sales are falling off .Do they remember when they were the best truck?

Bought 2007 Chevrolet Silverado Classic Crew Cab 4X4, 4.8, automatic ... Hoffman Chevrolet Hagerstown, MD Used Car Lot. Noise was occurring at that time. I just fiqured that the original shocks were the problem. I finally replaced shocks. Same clunking which is also felt through the steering wheel.Started research and found NHTSA Notice - Service Bullitin #000235003N - NHTSA # 10025148. By this time I had over 36000 miles and the dealer (now under new management) refuses to repair. The original management, one person whom I knew personally, would have fixed the problem. Dealer cost would be around $125.00; My cost (retail) is almost $200.00. I can buy the part at 10% above cost and do it myself. The 'old' parts manager, I used to work for was let go with all of the other good managers when the new management came in. That parts manager is with another GM dealer and will let me have the part at the previously mentioned discount price. He further told me that this was a problem with so many vehicles including my truck and other models built by GM and that a knowledgeable parts manager keeps these 'shafts' in stock. I guess I'm lucky, in that I did not get the "SHAFT" from Hoffman of Hagerstown, MD.

I BOUGHT A 2007 CHEVY SILVERADO IN JULY OF 2006 BY JANUARY IT WAS MAKING A KNOCKING NOISE IN THE FRONT END EVERY TIME I TURN RIGHT OR LEFT. IN EARLY 2007 THE DEALER REPLACED THE STEERING RACK. IN 2008 IT STARTED TO MAKE THE SAME KNOCKING NOISE. I TOOK IT BACK TO THE DEALER IN OCTOBER OF 2008 BUT THIS TIME I PAID CLOSE TO $500.00 FOR THEM TO REPLACE THE STEERING RACK. NOW AGAIN AROUND MAY OF 2009 IT IS MAKING THE SAME KNOCKING NOISE. IV'E ALREADY COMPLAINT TO THE CHEVROLET DEALER IF THIS PART WILL HAVE TO BE REPLACED EVERY YEAR BECAUSE FOR THEM TO REPLACE THE PART AGAIN THEY WANT ANOTHER $500.00, IT DID NOT EVEN LAST A YEAR.