2024 Gmc At4x Hd

2024 Gmc At4x Hd. The 2024 gmc sierra 2500 hd at4x aev edition adds functional style from american expedition vehicles trove of aftermarket accessories in a production package. The first ever sierra hd at4x and at4x aev edition is taking the at4 experience to the next level.

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 gooseneck hitch fitted. 401 (gas) / 470 (diesel)