Detroit DD13, 435hp, Jake, Detroit 12 Speed Automated Transmission, 12000# FA, 40000# RA, 3.25 Ratio, 52000 GVWR, Air Ride Cab, 11R22.5, Airliner Air Ride Suspension, 178" WB, Air Sliding 5th Wheel, Dual Fuel Tanks, Tilt, Cruise, AC, Stereo. Delivery Available! Arizona Rust Free Truck!!