Prepare your semi truck to be Ready for the Road Ahead , with the Automann Steerable Lift Axle Control Assembly that allows for the quick adjustment of the lift axle. With a weight-driven design, this replacement assembly allows operators to better distribute the load bearing capacity of cargo by modifying the height of the lift axle. Crafted to improve handling and control for both lightweight and heavy duty loads. FleetPride is your First Click in Heavy Duty .