'64 GMC Steering Wheel Diagram?

[Andice]

When I pulled the steering wheel off last weekend a small, split, cylindrical bushing feel out of the back of the wheel as I was about to lay the wheel down on the truck seat. Does this bushing go inside the opening on the back side of the wheel? Or do I slip it down on the column shaft? It seems like it may come into contact with the horn contact ring and possibly distort the ring and/or the upper column bushing as I torque down the wheel upon re-install. One end of this bushing is tapered. Taper up or taper down when re-installed? I'll go out and take an image or two of this bushing. An original assembly diagram would be appreciated. Thanks in advance.