New 2024 Gmc Sierra 2024 Hd Denali Ultimate Specs. Explore the 2025 gmc sierra 2500 hd & 3500 hd denali luxury truck. Work truck or show truck?
Discover the 2024 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more. These duramax power increases come courtesy of a new more efficient turbocharger, new cylinder heads with improved cooling, new higher pressure fuel injectors,.