Comfortable and capable, the 2500 is a muscular workhorse that can be outfitted plain or fancy. Configurations range from the base Tradesman to the deluxe Power Wagon Laramie. Maximum towing capacity is 17,980 lb; payload is 3160 lb. Two V-8 gas engines—a 400 lb-ft 5.7-liter or a 429 lb-ft 6.4-liter—are offered, both with a six-speed automatic. A 6.7-liter turbo-diesel inline-six is optional and comes with either a six-speed manual or automatic—and we love the diesel’s 800 lb-ft of torque.