CURT Spyder 5th Wheel to Gooseneck Adapter Hitch, Fits Industry-Standard Rails, 30,000 lbs, 2-5/16-Inch Ball Model 16090CURT Spyder 5th Wheel to Gooseneck Adapter Hitch, Fits Industry Standard Rails, 30,000 lbs, 2 5 16 Inch Ball Model 16090 Just because you install 5th wheel brackets and rails in your truck bed does not mean your truck is limited to one type of towing. To give your truck the tools it needs to be the ultimate towing machine, CURT offers a gooseneck adapter for a 5th wheel setup. A 5th wheel gooseneck plate is essentially a gooseneck hitch that mounts