Demco B&W Gooseneck to Industry Standard 5th Wheel Adapter 6140Convert your existing gooseneck setup to tow a fifth wheel with the Demco B&W Gooseneck to Industry Standard 5th Wheel Adapter (Part #6140). This rugged, drop in adapter lets you use a standard fifth wheel hitch on a truck that's already set up with a B&W Turnoverball gooseneck giving you the flexibility to tow both styles without permanent hardware or bed modifications. Use Your Turnoverball for Fifth Wheels If your truck has a B&W Turnoverball