Engine: 6.6L V8 gas engine with 401 horsepower and 464 lb-ft of torque Transmission: Six-speed automatic Drive type: Four-wheel drive Bed length: 82.2 in Payload capacity: 3,760 lbs Towing capacity: 18,500 lbs Curb weight: 6,852 lbs Fuel tank: 36 gallons Fuel type: Regular unleaded gas