What the heck is this spring?

LOL did you miss post #11.. or 18.... or #2, 9, or the FSM diagram showing it hooked to the fork?

If he has the early linkage like mine, the FSM does not show it. It depends on his production date. The early 65 and back use one type and the later 65-66 uses something similar to the 67 and up cars, so I can see where he might be kornfrooshed if he has the earlier linkage.