Jon, seems like you've done this job at least once before! These are invaluable videos if someone is working on this model tractor. I don't have any green machines so it was the Bundy Bears channel helped me a lot when I redid the trans and clutch on my antique heirloom Ferguson.
Do you know of any other way to adjust the perma clutch without the special tool JD78A?, I need to adjust mine (replaced discs), no JD dealer within 300 miles.