I had the same on my 05 500. I tried differnent shock settings. I tightend the front up two notches and put 5 psi in the tires and it helped a bit but the real fix was one i put on new tires 26inch ITP xtr's on itp type7's. i made everything better in ride comfort, handling, and not to mention the grip these things have. It was like a whole new machine.