I think we should do a quick review of parts identification.  Parts blow-up diagrams are nice but there is nothing like seeing the actual part so I am going to jump ahead to some clean and painted parts for clarity reasons.  Here are the parts we are working with and their names
And to beat a dead horse .. here is what the parts looked like when I took them off.  Slip the trunnion off .. then the swivel axle and you are left with the bare kingpin.  The swivel axle felt pretty good on the kingpin so I figured my kingpin didn't need replacing
If you can wiggle your kingpin back and forth you should replace your outer fulcrum pin.  To remove the pin .. you first have to remove the cotter pin that I am pointing to .. it's actually a little tapered bolt ( with nut ). I don't know why they call it a cotter.   After that you take the grease fitting and cap off of the end to expose the end of the fulcrum pin.  As you can see .. the end of the pin has a slot in it.  The pin is actually a large threaded bolt and you may be lucky enough to put a big screw driver to it and unscrew it.  Just for the record .. this gave me more trouble than anything else I did.
As a matter of fact, it gave me sooo much trouble that I had to take a thin cutting disc and cut the pin out.  If I had it to do over again .. I would have cut on the other side of the kingpin first.  There would be a chance that you could unscrew the fulcrum pin out after one cut.  The way I did it .. you have to make two cuts.  I made a slot in the remaining pin with my dremel and was able to unscrew it.  And the cotter pin was a real pain too .. It took me forever to get it out.  I had to grind it off flush and drive it out with a punch

.

When you reinstall the kingpin in the lower link there are cork washers on both sides of the kingpin around the fulcrum pin.  You can see one in the picture.  I ordered 4 from the proper places and they were way wrong .. so I just went to the hardware store and grabbed something that was close.