2024 Gmc Denali 2024 Duramax Sheds. The denali trim moves to second place in the sierra hd’s hierarchy for the 2024 model year with the introduction of the new denali ultimate trim, available for both the 2500 and 3500 models. 2024 gmc sierra 2500 and 3500 hd first look:
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. Seeing as the new ram.