You couldn't ask for better off-roading weather. You can't get a better off-roading heavy-duty truck. The 2024 GMC Sierra 2500 HD AT4 🗻 6.6 Duramax Diesel Engine 🗻 Up to 18,500 LBS Towing Capacity 🗻 Hill Descent Control 🗻 Skid Plates & Off-Road Suspension 🗻 2-Speed AutoTrac Transfer case #gmc #gmcsierra #hdtrucks #offroading