Curt Manufacturing 60616 Trailer Hitch Replaces gooseneck ball in Double Lock gooseneck hitch #60607 2 5/16" diameter ball couples to most gooseneck trailers Accepts up to 30,000 lbs. GTW and 7,500 lbs. vertical load limit Double locking pins for superior trailer and trailer ball security Flip-and-store ball keeps truck bed free of obstruction