Conventional, 72 Inch Raised Roof Sleeper Upper Bunk 573,000 Approximate Miles ECM Reads 573,000 Miles Detroit DD13 Engine, 450 H.P., Balance of Detroit Diesel 7 Year / 750,000 Mile EW4 Engine Brake FRW-15210B Transmission, (Manual) 40,000 Lb. Rear Ends 2.41 Ratio Air Ride Suspension Hydraulic Power Steering Air Conditioned Dual Aluminum Fuel Tanks Horizontal Exhaust Side Fairings Cab Extenders Quarter Fenders Tilt And Telescoping Steering Wheel Cruise Control Power Windows Stationary 5th 235 Inch Wheel Base 22.5 Low Profile Tires Aluminum Disc Wheels