Overland Expo has unveiled its Ultimate Overland Vehicle, using components from 21 different show exhibitors and brand partners using the 2022 GMC Sierra 1500 AT4X as a platform. This truck, featuring Multimatic DSSV spool-valve dampers, as well as new springs that increase suspension travel by 1.97 inches (50 millimeters) in front and 0.98 inches (25 millimeters) in the rear. There’s no need for a traditional bed while overlanding, so the standard unit on the 2022 GMC Sierra AT4X was replaced with a 6.4-foot long tray that holds many exciting things, such as an 8-gallon water tank, storage bi…