I managed to remove the knobs, but I had to destroy one to get it off. It was ok to destroy it because I noticed that it had been soldered on with some lead and was pretty haggard looking and would have been replaced.
Basically all that holds the knobs on the shaft is one of those stamped metal push on nuts hidden inside the knob. The little slot on the side of the knob is to allow you to get an o-ring tool or alike in there to sort of disengage the nut off off the switch shaft.
Both knobs were pretty bad and a few places have reasonable reproduction of them, so I'm ok with the carnage.
At least I learned something about them. I appreciate all the suggestions guys!
I also pulled all of the wiring harness out and had a good survey of all the back side of the dash. The wiring is a disaster and will need to be replaced. While I was under there I found that the stamped steel steering column support was broken in half so I repaired that as well. And so on, and so on.
While I was in the front wheel well repairing more broken bracketry . I just couldn't stand to leave the crusty shocks in there untouched. The shop manual manual states that they are rebuildable. I did a little looking around and was unable to find any type of seal or seal kit out there. anybody here have any insight as to where a feller could procure some? They are the bigger gland looking part that is in the bottom right of the row of small inner parts in the photo/s. There is also a sealing ring much like pump packing that seals the gland to the shock tube.
I can understand rebuilding arm type shock absorbers which are "unique" and very hard to find at a decent price but those telescopic shocks can be purchased in almost identical shape very cheaply at any parts place. Yours are most likely single action, by putting standard double action modern shocks on it improves the ride and safety very noticeably.
Then again you might just want the fun of restoring them.
Here is the page out of Vintage Power Wagons catalog. Looks like yours halfway down the page complete (I bet they have modern internals and are two way). You can get the same thing from Pedders, REPCO, SuperCheap for much less here. drive.google.com/file/d/0BxzO_Oy1EMLIZXZyaTcxSUxNTjQ/view