2024 Gmc Sierra Hd Truck. They are larger and less fuel efficient than the sierra 1500. The 2024 gmc sierra hd is the best in its class, with the power of an advanced diesel engine and the utility of the latest tailgate and trailering technologies.

There’s dna, then there’s heavy duty dna—hdna. See the complete list of 2024 gmc sierra hd updates,.