2020 2500 AT4, I’ve towed our 37’ fifth wheel which ways around 11,500-12,000 when loaded and a pin weight of 2197 with no issues, I did install the airlift load lifter 5000 ultimate air bags and that definitely helped with any sag and greatly improved my steering and handling. Love the truck, the camera setups on these trucks are incredible. Sent from my iPhone using Tapatalk