Detroit DD15, 455 hp, 307,125 Actual Miles, Eaton Fuller 10- Speed Manual Transmission, 12000# FA, 40000# RA, 3.55 Ratio, Air Ride Cab, Aluminum Wheels, 11R22.5, Airliner Air Ride Suspension, 178" WB, Air Sliding 5th Wheel, Dual Fuel Tanks. Tilt, Cruise, AC, Stereo.