2020 GMC HD Reveal

They said in the video they updated the frame, but there wasn't any specific detail on that. Maybe there was only two bolts in the aux. spring hanger before and now there is three. I am sure the details of the chassis upgrades will become known as the release date gets closer. I am curious if the lights on the wheel wells are cosmetic or the truck is wide enough to require them via DOT. Didn't notice that on the Silverado.