Gmc Sierra 2025 Hd At4 2025. Tame the untamed in the first ever sierra hd at4x aev edition. Detailed specs and features for the 2025 gmc sierra 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,.

Detailed specs and features for the 2025 gmc sierra 2500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,. The 2025 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package.