Cummins 6 Cylinder 8.3 L Diesel Engine, US EPA Label, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 5433 kg Front Axle, 9979 kg Rears, 15422 kg GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 272 in Wheelbase, 21 ft 6 in x 96 in Bed, Pintle Hitch

Cummins ISC 6 Cylinder Diesel 315 hp Engine, Eaton Fuller Manual Transmission, Differential Lock, 10432 lb Front Axle, 46000 lb Rears, 60000 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 11R22.5 Rear Tires, Double Frame, Chalmers Rubber Suspension, 210 in Wheelbase, 20 ft x 96 in Bed, Ringfeder

Cat 3126 6 Cylinder 7.2 L Diesel Engine, Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, 34 in Flat Top Sleeper Cab, 295/75R22.5 Front Tires, 275/80R22.5 Rear Tires, Air Ride Suspension, 248 in Wheelbase, 18 ft x 100 in Bed, Pintle Hitch