these changes apply to both 2021 Sierra 2500HD and 2021 Sierra 3500HD models. As of this writing, GMC dealers might have the 2021 Sierra HD in stock, including models in Hunter Metallic.

The 2024 GMC Sierra 2500 HD we have today is spec’d in the new-for-2024 Denali Ultimate trim and finished in the chameleon-like Titanium Rush Metallic (G6M). This range-topping trim level of the ...