Detroit DD13, 435 HP, 406,904 Miles, Jake, Detroit 12 Speed Automated Transmission, 12000# FA, 40000# RA, 3.25 Ratio, Air Ride Cab, 11R22.5, Airliner Air Ride Suspension, 178" WB, Air Sliding 5th Wheel, Dual Fuel Tanks, Aluminum Wheels, Tilt, A/C, Cruise, and Stereo. Rust Free California Truck.