Cummins B5.9-190 6 Cylinder 5.9 L Diesel 190 hp Engine, Eaton Fuller 6-Speed Manual Transmission, 8500 lb Front Axle, 17500 lb Rears, 26000 lb GVWR, 305/70/22.5 Front Tires, 11R22.5 Rear Tires, Ford Spring Suspension, 189 in Wheelbase, 16 ft x 102 in Bed, Pintle Hitch