If your short-bed truck is causing the trailer nose to contact the cab during tight turns, the B&W GNXA4085 Gooseneck Extender is the fix. It raises the gooseneck ball above the standard mounting position, giving your trailer coupler the vertical clearance it needs to swing freely through sharp corners -- without swapping out your entire hitch system.
Short-bed trucks (typically under 6.5 ft bed length) are notorious for cab contact when pulling gooseneck trailers through sharp turns or when backing. The B&W GNXA4085 is purpose-built to address this by extending the ball upward, increasing the gap between the trailer neck and the truck cab. This is especially critical for heavy livestock trailers, flatbeds, and large horse trailers where the neck geometry makes contact a real risk.
The GNXA4085 is designed to integrate with B&W's proven Turnoverball gooseneck hitch system -- one of the most trusted platforms in the towing industry. If you already have a B&W Turnoverball installed in your truck bed, this extender drops right into that system without requiring additional drilling or major modifications.
Extends the gooseneck ball upward to create greater vertical clearance between your trailer coupler and truck cab during sharp turns.
Engineered specifically for B&W Turnoverball gooseneck hitch systems -- no adapter plates or custom fabrication needed.
Solid steel build at 18.31 lbs reflects the robust material stock needed for safe, high-load gooseneck towing applications.
Designed for trucks with bed lengths under approximately 6.5 ft where cab-to-trailer clearance is a known towing concern.
A gooseneck extender (also called a ball riser or gooseneck ball riser) replaces or augments the standard ball position in your hitch mounting plate. Instead of the coupler riding at bed-floor level, the extender elevates the ball -- typically several inches -- so the trailer neck has room to pivot left and right without striking the rear cab wall or the truck bed rails.
This is not a universal problem. Trucks with 8-foot beds generally have enough room that extenders are optional. But on 5.5 ft and 6.5 ft beds -- common on modern half-ton and three-quarter-ton pickups -- the geometry gets tight fast, especially when backing into narrow spots or navigating livestock pen gates.
B&W's Turnoverball system is the benchmark gooseneck platform for serious towers. The ball flips down flush with the truck bed when not in use, preserving a flat bed floor. The GNXA4085 extender is part of B&W's accessory lineup for that system, meaning it is engineered with the same machined-steel standards and works with B&W's established mounting geometry.
If you are running a B&W Turnoverball hitch (sold separately, model numbers vary by truck make/year), the GNXA4085 is the correct extender accessory to pair with it for short-bed clearance applications.
Installation of the GNXA4085 is straightforward for anyone comfortable working with their existing B&W hitch hardware. The extender mounts into the same receiver point as your standard ball assembly. No welding or custom fab is required. Torque specifications and exact procedure should follow B&W's published instructions for your specific Turnoverball model.
B&W Trailer Hitches is a U.S.-based manufacturer known for high-tolerance steel hitch products. Their Turnoverball gooseneck system is widely used by ranchers, farmers, construction crews, and serious RV towers who demand reliability under heavy-load, high-cycle conditions. The GNXA4085 carries that same build quality as part of the B&W accessory line.