Here's the final outcome of my problem that started this thread. It was the roll pin #4 in the previously attached drawing that was sheared off, inside the case. There was about 1/2" of this pin remaining. It was a 74 cent part but took a lot of time to get to. I removed the left fender, the seat, the plastic cover and then the RockShaft cover and it was right there. If this happens to anyone make sure you get the right pin. It's an oddball metric size. There are versions that are close at Ace hardware but I decided it wasn't worth tearing into again to replace the wrong pin. I also got new filters, new oil, and new sensors along the way but they probably needed replacement too.
A great big thanks to the Guys at RDO Equipment in Phoenix. I know it's not a big deal but they gave me that pin, free of charge. That's the little stuff that means a lot to me......just like all of you sharing your wisdom. Thanks again to everyone and happy digging!