I have the dreaded vibration in the seat. Wheels have been road forced balanced and I even swapped them out with OEM's and the vibration didn't go away. In the process of changing wheels, I noticed the guide link bushing was torn on both sides. I figured I would swap them out, but wanted to find someone who has done it. Can anyone tell me anything about the swap? It looks simple enough.

It is #14 in the diagram. Also included a pic of the guide link.

 

even if the link was worn and loose, it shouldn't cause a vibration. it may exaggerate a vibe, but not cause one in my opinion.