2025 Gmc Denali Ultimate 2025 Dually. The 2025 gmc sierra hd denali ultimate, refreshed for the 2025 model year, is gmc's most premium, luxurious and technologically advanced truck yet. This refreshed sierra 3500 hd wears onyx black paint and sports a dual rear wheel (dually) setup.
Think of the denali ultimate as a luxury car or suv that just happens to have a bed. The 2025 gmc sierra hd denali ultimate dually will get these wheels.