6 Cylinder Ultra Low Sulfur Diesel Engine, 24550 Engine hrs, Eaton Fuller 7-Speed Manual Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, Air Ride Cab, 295/75R22.5 Front Tires, 275/80R22.5 Rear Tires, Spring Suspension, 143 in Wheelbase

Mack 6 Cylinder Diesel Engine, 2004 US EPA Label, 27178 Engine hrs, Eaton Fuller 7-Speed Manual Transmission, 12000 lb Front Axle, 22700 lb Rears, 34700 lb GVWR, Air Ride Cab, 275/80R22.5 Front Tires, 295/75R22.5 Rear Tires, Spring Suspension, 142 in Wheelbase

Mack 6 Cylinder Diesel Engine, 23122.8 Engine hrs, Engine Brake, Manual Transmission, 12000 lb Front Axle, 23000 lb Rears, 35000 lb GVWR, 11R22.5, Air Ride Suspension, 154 in Wheelbase, Dual Fuel Tanks