Two problems related to vehicle shudder have been reported for the 1999 Chevrolet Silverado. The most recently reported issues are listed below.
Vehicle has a vibration in floorboard. Problem has been consistent. The transmission has to be reprogrammed to at least cut down some of vibration. Dealer has not yet found a remedy.
Vehicle vibrates between 0 mph to 22 mph. More pronounced when towing trailer. Dealer and gm contacted, were advised is common problem, no fix available as of 12-6-99. Engineers working on problem.