2025 Gmc Sierra 2500hd Denali Ultimate Wheels. Incredibly smooth powertrain for daily driving. Discover the 2025 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more.

Discover the 2025 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more.  — gm pulled the sheets on the refreshed 2025 gmc sierra hd early last month, revealing revised exterior styling, a revamped interior space, powertrain updates,.