Gmc Denali Ultimate 2024 Dually. 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. Denali goes ultimate, at4x joins the ranks.
2024 gmc sierra 2500 and 3500 hd first look: This particular truck is a 2024 gmc sierra hd in the crew cab, long bed configuration.