The 9 axle dolly incorporates a booster mechanism to maintain correct axle loadings between all axle groupings while maneuvering over rough terrain. This booster mechanism allows for an unparalleled loading height of under 6 ft. Other designs that incorporate 3 axle groups use large beams and pivots which increases the loading height and tare weight. Another best-in-class is the automated steering of the front and rear groups. The automated steering can effortlessly steer the unit onto most on and off ramps. Manual steering is always available to maneuver the trailer in and out of extreme cornering situations.