2024 Denali Ultimate Hd. At the top of the range, there's now the denali ultimate. Explore the 2025 gmc sierra 2500 hd & 3500 hd denali luxury truck.

At the top of the range, there’s now the denali ultimate. The 2024 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds.