The Removable Axle is a complete axle assembly frame attached to the rear frame by hinge plates and pins. The Removable Axle used when the trailer's axle loading exceeds the gross weight that a given state will allow on each axle. Otherwise, the Removable Axle can be flipped up onto the rear frame, or removed, to reduce the number of axles. The Removable Axle connects to the trailer's leveling valve if it is to be used with an air ride trailer; or comes with a hand control valve if the Removable Axle is used on a trailer with a mechanical suspension.