2024 Gmc Denali Ultimate 2024 Dually Specs. 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. The denali ultimate trim package is the newest and highest trim package available on the gmc sierra 1500, sierra 2500hd, and sierra 3500hd trucks.
2024 sierra 2500hd denali ultimate 4×4 crew cab 8 ft. As we can see from these tables, the 2024 gmc sierra hd model with the highest towing capacity rating is the 3500 hd regular cab / long bed drw (dual rear.
