The CURT Q20 is designed to offer the quietest 5th wheel towing possible. It does this using a spherical axial bearing. This unique pivoting mechanism is built into the hitch head and allows it to tilt with the 5th wheel trailer in any direction necessary. With its dual-locking jaws for 360-degree pin contact and three grease fittings for continuous lubrication, the spherical axial bearing provides smooth, safe, quiet towing, even with large 5th wheel trailers. The Q20 also makes the coupling process easier. It features a self-aligning head to help reduce errors when backing up to the kingpin, as well as a three-position coupling indicator. This 20K 5th wheel hitch comes with the CURT R20 slider and the CURT OEM puck system 5th wheel slider adapter. It is designed to be mounted on a Ram short-bed pickup with the truck bed puck system. Using a set of quarter-turn anchors, the adapter quickly and easily drop into the pucks, instantly mounting the Q20 hitch and slider and equipping the truck for 5th wheel towing. Once installed, the R20 slider allows for added clearance when making tight turns with your trailer. CURT 5th wheel sliders are true rolling units, meaning they actually roll on wheels that bear the weight of the trailer rather than simply sliding on hollow rods as seen in competitive models. With a thick operating handle, the roller smoothly rolls the 5th wheel head forward and back, locking securely into each position as desired. CURT slider s also provide up to 12 in. of displacement as well, unlike the more common 10 in., to give you a wide range of motion and plenty of space to get your RV or other 5th wheel trailer around any turn. This Q20 hitch with puck system slider is only intended to fit the Ram puck system and cannot be installed without it. Certain turret-style pin boxes, such as Sidewinder, are not compatible with CURT Q-series hitches and should not be used as they may create vehicle / trailer handling hazards.