2024 Gmc Sierra 3500hd At4. The at4x aev edition is an extension of the at4x trim and is a. Information about the 2024 gmc sierra hd, including availability, changes, specifications, pictures and other details about the 2024 sierra hd pickup truck.

Detailed specs and features for the 2024 gmc sierra 3500hd including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. Information about the 2024 gmc sierra hd, including availability, changes, specifications, pictures and other details about the 2024 sierra hd pickup truck.