One problem related to vehicle shudder has been reported for the 2018 Chevrolet 3500. The most recently reported issues are listed below.
While traveling at 31 mph on a slight down-grade, the transmission �shuttles� between gears which causes the vehicle to shake violently. It is most prominent when the engine has not reach full operating temperature. It also happens when accelerating, such as entering a freeway. A video is available.