Sorry If I change above post while you were replying. I convienced myself what I thought I was seeing
while I have never seen the early linkage, Yours does look like it has the effort reduction toggle.
the early linkage, from parts book drawings, shows "C" connecting directly to the MC pushrod.
I am thinking, the early linkage "C" should be shorter
Thanks for your measurement as it confirms the same on mine (also disassemble, but rusted )
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