Richard, my notes show a change over date of approximately May 1967 from the 1 inch to 1.125 inch sector shaft but I cant be certain of that so I left that part out.
6t9m1 good catch on page 32, I need to correct that to 5/16-18 as that is correct.
C6ZZGT I mention in the beginning of this article on the first page its a work in progress and I am releasing sections as I get them finished otherwise its too much to do all at once. Center links will eventually be in there as well.