Ram Truck’s Ram 4500 and 5500 Chassis Cab trucks are available with an optional 30,000-lb. GCWR and Max Tow package that includes a new transfer case gear set and chain and sprocket upgrades, recalibrated transmission software and an enhanced collection of thermal management devices. The trucks come equipped with a 305-hp 6.7L Cummins Turbo Diesel and a 6-speed manual transmission. All chassis components are below the frame surface, allowing easy adaptability and versatility for virtually any unfit application.