After being hunted nearly to extinction, the American bison has slowly come back in the West and is a common sight at Yellowstone National Park. At Chevrolet, the genus ZR2 Bison is an even more common sight, and its population is about to double, with a new Silverado ZR2 Bison pickup joining the Colorado ZR2 Bison that has been roaming Chevy dealer lots since 2019.

Like the mid-size Colorado ZR2 Bison, the new Silverado was developed with off-road specialists American Expedition Vehicles (AEV) and will be the model’s most hardcore off-roader. It’s based on the existing ZR2 (which continues), adding five underbody skid plates along with rocker-panel protectors and replacing the front and rear bumpers with redesigned stamped-steel units that integrate step plates and front tow hooks. Gloss black 18-inch wheels are wrapped with 33-inch Goodyear Wrangler Territory MT tires. The new bumpers allow for steeper approach and departure angles, although exact figures aren’t yet available. Chevrolet is estimating 32.5 degrees for the approach angle and 23.4 degrees for the departure angle. Ground clearance is unchanged at 11.2 inches.

Beyond the trim-specific black wheels, the Bison is differentiated by its body-colored grille bar and a matte-black panel on its standard Multi-Flex tailgate, in addition to Bison and AEV badging inside and out.

Like the ZR2, the Bison comes exclusively with a 6.2-liter V-8 that’s good for 420 horsepower and 460 pound-feet of torque. Output is sent via a 10-speed automatic to front and rear electronically locking differentials.