Mine is a single wheel one ton, and I tow a 5th wheel that is 14000 pounds, it has a total combined weight of 22,500 pounds. It tows it OK, not the best setup, I bought the truck as a work truck, but now its a trailer hauler, my replacement will be a 2011 3500 2WD with 4:10 rear axle, and it will be kept 100% stock, my 05 has air bags, PacBrake, and a Smarty adding about 15% in power, the DRW has to be the only way for towing, mine is fine, but in the wind you work a little harder, as for towing that heavy Toy Hauler, I pass, 3/4 ton is not the right truck, not even close.