B&W GNRK1500 Turnoverball Underbed Gooseneck Trailer Hitch for Flatbed Trucks

The B&W GNRK1500 is the flatbed version of B&W's Turnoverball gooseneck hitch. It welds into a steel flatbed or service body deck and puts a 2-5/16 inch ball right where a gooseneck trailer needs it, then lets you flip the ball over and stow it in the socket so the deck stays flat when you are not towing.

Most underbed gooseneck kits are built around a specific pickup's frame and bed. A flatbed is different, because every deck, frame and cross member layout is a little different, so B&W made this kit to be welded in by a fabricator who can tie it into the deck structure on that truck. The core is the same Turnoverball socket B&W uses in its pickup kits: a 6 x 8 inch, 1/2 inch thick plate with a socket that sits just 1/8 inch above the deck.

The ball is a solid machined 2-5/16 inch ball, not a hollow or two piece design. It locks in place with a 5/8 inch spring loaded steel pin. To remove it, pull the handle and turn it to hold the pin open, lift the ball out, and drop it back in upside down. With the ball stored, there is nothing sticking up to catch on pallets, hay or toolboxes.

What's included

• 2-5/16 inch solid Turnoverball
• Flatbed socket assembly with locking pin
• Latch pin handle, spring and two handle guides
• Safety chain kit with two U-bolts, four conical springs and nuts

Installation notes

This is a weld-in kit and should be installed by someone who can weld structural steel. B&W's instructions call for a 4 inch hole in the deck, located 2 to 6 inches ahead of the rear axle centerline, with the socket welded in and braced to the bed cross members using 1/4 x 4 x 16 inch steel strap, which is not included. The kit is designed for a steel deck of about 1/8 inch plate. Aluminum beds need added steel structure underneath before the socket can carry a gooseneck load.

B&W rates the Turnoverball at 30,000 lb gross trailer weight and 7,500 lb vertical load. Your actual towing limit is the lowest rating of the truck, the bed structure, the hitch and the trailer coupler, so check the truck's gross combined weight rating before you hook up a heavy load. The hitch carries a powder coat finish and B&W's limited lifetime warranty.

Common questions

Will the GNRK1500 fit a pickup bed? It can be adapted, but B&W makes model specific Turnoverball kits for most pickups that bolt to the frame without welding. This kit is meant for flatbeds, service bodies and custom decks.

Does it come with safety chain hooks? Yes. Two U-bolt safety chain loops with springs come in the box and mount through the deck next to the ball.

Fitment: Universal for steel flatbed and service body trucks, weld-in installation