Gmc Denali Ultimate 2024 Dually Specs. View detailed specs, features and options for the 2024 gmc sierra 2500hd 4wd crew cab 159 denali ultimate at u.s. — 2024 gmc sierra 2500hd and 3500hd pickup trucks equipped with the denali ultimate trim are the only truck in gmc’s lineup that come standard with the 6.6l l5p duramax diesel engine,.
Adaptive cruise control with trailering assist, previously standard on the 2024 at4x and denali ultimate trim levels, now comes on the at4 and denali trims as well. View local inventory and get a quote from a dealer.