Here's another victim. 2017 GMC Sierra 2500 Denali Duramax. Truck is shacking since day 1. Brought it to the dealer today after 2 weeks of owning it, they did a "Road Forced Balance" on all 4 wheels, and its still shaking, starting at 50 and around 70 MPH its worst, to the point that the passenger seat is going sideways and I can feel it in the steering wheel and seat. Its not super extreme, but annoying enough that I avoid longer trips on the highway. It is constant at those speeds and gets better at 80+.
Any ideas in my case? I'd hate having to read 748 pages with all this troll crap in-between.