2024 Gmc Sierra 3500hd At4. As we can see from these tables, the 2024 gmc sierra hd model with the highest towing capacity rating is the 3500 hd regular cab / long bed drw (dual rear wheel) with 2wd, a gooseneck. 2024 gmc sierra 2500hd at4.

I am no expert at any of this, just passionate about modifying my vehicles to my liking. Choose from either a gmc sierra 2500 hd or 3500 hd at4, and learn more about the vehicle specs, trims, and features available.