Gmc 2024 Sierra 2500. Gmc sierra 2500 hd spec highlights. Gmc's heavy hauler, the sierra hd pickup with the diesel engine, is rated to tow up to 22,500 pounds conventionally or 36,000 with a.

The motortrend buyer’s guide has the 2024 gmc sierra 2500hd specs you need, from dimensions and cargo space to power and mpgs. Gmc’s heavy hauler, the sierra hd pickup with the diesel engine, is rated to tow up to 22,500 pounds conventionally or 36,000 with a.