Running 53' step decks can present some challenges. How does one respect individual state and province internal bridge regulations, maximize payload and achieve legal axle weight distribution? The solution to maximum operational efficiency throughout North America is a relocatable three position rear axle. Talk to Tucker Schmal for more details 888-562-3546., Extendable No, Suspension Hendrickson, Length 53', Width 102", Height Front 59", Floor Type Aluminum Floor, Tires 255/70R 22.5 Bridgestone R-250, Wheels All Steel, Tandem Rear Axels, Axle Sliding, Composition Combination