I purchased my 2018 Chevy Silverado brand new in 2019. A year later, w/30,000 miles, the truck has the “Chevy Shakes.” The vibration/shimmering over certain speeds(50 +MPH) is unbearable. After doing some research I found I am not alone in this area. I have contacted an attorney and will wait to see how they handle this issue. UNACCEPTABLE!!!!