A Gooseneck Extender (sometimes called a "Flip Box") is an accessory that is used to add length to the swing clearance
of a gooseneck. The most common use for a gooseneck extender is to allow a trailer to connect to a jeep dolly
, but one can also be used to add swing clearance
to a gooseneck for use with a tractor with a longer frame. When not is use, the Gooseneck Extender can be flipped over onto the top of the gooseneck or removed completely.