Winner: Ford F-350 Super Duty King Ranch
Runner-Up: Ram HD 3500 Laramie Longhorn

Topline power pullers are both highly luxurious and tough. They can tow the equivalent of 10 cars at once and have enough payload capacity to carry the equivalent of a 3/4-ton work truck. We looked at the top trim levels for the trucks from each of the three manufacturers. This was a close one, but the King Ranch is still the best combo of luxury interior and capability, with a good-looking cabin, 21,500-pound towing capacity, and a near-5000-pound payload. The attractive newbie Laramie Longhorn is also impressive, tying the Ford for best torque in its class.

TopLine Power Puller, 4WD Crew Cab Diesel Dualie
Vehicle Chevrolet Silverado 3500HD LTZ/GMC Sierra Denali 3500HD Ford F-350 Super Duty King Ranch Ram HD 3500 Crew Cab Laramie Longhorn
Price incl diesel $56,020/$59,015 $59,675 $58,840
Wheelbase 167.7 in 172.4 in 168.9 in
Engine 6.6L OHV 32-valve TD V-8 6.7L OHV 32-valve TD V-8 6.7L OHV 24-valve intercooled TD I-6
Transmission 6-speed auto 6-speed auto 6-speed auto
Power @ rpm, SAE 397 hp @ 3000 rpm 400 hp @ 2800 rpm 350 hp @ 3000 rpm
Torque @ rpm, SAE 765 lb-ft @ 1600 rpm 800 lb-ft @ 1600 rpm 800 lb-ft @ 1500 rpm
Airbags Front Front Front, f/r curt
Brakes Disc/disc, ABS Disc/disc, ABS Disc/disc, ABS
Tires 235/80R17 225/70R19.5 235/80R17
Fuel cap 36.0 gal 37.5 gal 35.0 gal
Seating cap 6 6 6
Curb weight 7878 lb 8150 lb 7965 lb
Max GVWR 13,000 lb 13,300 lb 12,300 lb
Payload 5133 lb 5990 lb 4330 lb
Max towing cap (fifth wheel) 22,400 lb 21,500 lb 19,050 lb