Anyone had trouble with their brake calipers or cradles making a constant rattling noise? i know it the brakes because if your driving say 30mph with window down everytime you hit the slightest bump they ratlle. If you just barely touch the brake pedl the noise disappears until you let foot off the brake and then it is back again. I have replaced brakes, rotors and mounting bolts and it is still there and it is driving me crazy. I have a nice truck but it sounds like a rattle trap goin down the road. Help please!!!