2024 Gmc Duramax Denali Ultimate Specs. Learn the ins and outs about the new 2024 gmc sierra 3500hd 4wd crew cab 159 denali ultimate. Find information on performance, specs, engine, safety and more.

2024 gmc sierra 3500hd denali ultimate towing specs. The sierra 2500hd denali ultimate looks to elevate the brand’s premium status, with a refreshed duramax, a new exterior, and more.