I have two silverados 2004 ls and 2005 base model. Both have had extensive front end damage and repairs due to wrecks. Until recently both have been pretty smooth riding vehicles. My 2004 however has started to ride a little rough some slight bumpiness twitching in the steering and wobbling. Plains out over 65. I know it sounds odd but at an idle there is a loud vibration metal rattling also while turning the steering wheel it does the same thing and occasionally shuts off in full steer. I do have leveling shackles on the rear that have been there for two years, dnt know if this could be the cause of some suspension problems. Ive had computerized alignment done a month ago and ive gotten new tires, also done an all out brake job on it but still no fix!!! CAN ANYONE HELP ME???
