A system and method of raising and lowering a ball coupler for coupling to a ball hitch is provided. A combination of hydraulic pump and hydraulic piston are employed to raise and lower the ball coupler of a gooseneck trailer. Both custom and off the shelf parts combine to create a user friendly system to couple and uncouple a gooseneck trailer to the truck. The system described herein replaces the need to raise and lower a gooseneck trailer's coupling system by hand crank and gear box and even the need to climb into the back of the truck bed. Varying trailer frame configurations and ball coupler sizes can be employed with the present invention. Also described and shown in this provisional is a non-rotating free end hydraulic piston device and method. Also described and shown is a coupling bushing device and method for securing a conventional coupler to piston rod.