2025 Gmc At4 Hd Specs. The maximum trailer weight of 36,000. That's $9495 extra on top of the at4x, and it dwarfs the $76,195 needed to lasso a denali or the $72,560 ram asks for an hd power wagon.
The 2025 gmc sierra hd at4 and at4x pickup truck offers powerful capabilities and advanced technologies to help you take on the world in comfort and control. View information about specs and features.