Amazon.com: T Built 12" Fifth Wheel to Gooseneck Adapter Hitch : Automotive
Gooseneck Air Hitch for 5th Wheel Gooseneck Pin Box or Adapter
Ranch Hitch Universal 5th-Wheel-to-Gooseneck Coupler Adapter w/8" Offset for Short-Bed Trucks Andersen Gooseneck and Fifth Wheel Adapters AM3139
Amazon.com: ANDERSEN HITCHES | Ultimate Fifth Wheel Connection | Aluminum Gooseneck Mount Trailer Hitch Adapter | Towing Accessories | ONE Person Install or Removal in Less Than 5 Minutes! | 3220 : Home & Kitchen
Amazon.com: CURT 16310 X5 Gooseneck to 5th Wheel Adapter for B&W Hitches, Industry-Standard Base Rails, 20,000 lbs : Automotive