Chevrolet Silverado HD ZR2 Bison: The Ultimate Heavy-Duty Off-Roader Brand Chevrolet If you are looking for a heavy-duty pickup truck that can handle any terrain and challenge, you might want to take a look at the Chevrolet Silverado HD ZR2 Bison. This is a new variant of the Silverado 2500 HD that combines the off-road prowess... By spare-wheel, 17 April, 2023