Gmc 2025 Denali 2025 Hd Specs.  — the 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds. It completes a quarter mile run in.

 — the 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds. See pricing for the new 2025 gmc sierra 2500 hd crew cab denali ultimate.