Utilizing the "Above Bed" or Ultra series mounting system this 18K Autoslide does everything you need it to do.Getting in to and out of those tight spaces will be a breeze! Already have a Hijacker Ultra Series Manual or stationary 5th wheel hitch? Simply upgrade to this 18K Autoslide without having to change your mounting system. Just drop in, hook up and go! Fits Industry Standard railsWrap around jaw with locking bar for a smoother, safer and more secure ride. Patent PendingNo locking plate required for standard pin boxes, to activate slide mechanismSlides utilizing rack and pinion gear technology UMS (or under bed) mounting system leaves the bed free and clear when you remove the hitchUp to 14" of travel to help get in and out of those tight spotsLower profile designLighter weight for easier hitch installation and removalEasy access for routine maintenanceThree mounting systems to fit your needs3 vertical height adjustments to help you level truck and trailer5 year warrantyMade in the USA with American steel*A locking plate is required with one of the following suspension pin boxes: Demco Glide Ride, MorRyde, RotoFlex, Trailair Tri Glide, Trailair Flexair or 5th Airborne.