We bought a 06 LBZ. It had around 30,000 on it when we got it. We have a rattle vibration type feel in the front end. It seems to be most noticeable when pressing the brake pedal while turning a curve. We took it in and they replaced the intermediate steering shaft. That didn fix it. We have took it in around 4 times now. They say they dont know what it is. They did notice that the torsion bars had been bumped up and said that might be causing the the problem. So now that the torsion bars are put back down it still does it. They said it couuld need an alinement. So its in right now getting that done. Anyone else have this problem??