At least you did have the 1&5/16. Typical 1/2 drive sets end at 1&1/4. Anyway... That is the large shaft and pitman arm. The smaller shaft has a 1&1/8 hex nut.
I have to assume a previous owner placed 73 up steering gear and linkage under this car. If so, you'll need the manual steering pitman arm with 73 up fitment to the center link. Which direction that ball stud faced changed too. Ma mopar changed things, then previous owners changed things, are we having fun yet?
