Along with the exterior additions, the Silverado HD ZR2 comes with front upgraded upper and lower control arms, steering knuckles, a bigger steel transfer case, skid plates, a rear e-locker, and Multimatic DSSV Spool-Valve Dampers. The goal is to make it damn near unbreakable and to enable superb off-roading – after towing everything but the kitchen sink to your location.
Like the Colorado ZR2, a lot of the hardware is shared with the race truck, and that includes the frame, suspension, steering, brakes, the DSSV dampers, underbody protection, axles, transfer case, and the gasoline-fueled V8 if optioned.