I have a 1982 Hunter 27 with Hood SeaFurl furling system on the jib and got a new bottom bearing since the old one was worn in half and falling out. The new one has a small hole in the center. How do I fit this to the bottom furler section? Does it go on the turnbuckle which would require an odd shaped hole, or, does it go on the upper threaded portion of the turnbuckle which would require a hole the same size as the rod? Any help appreciated. Thanks.