Last detail…
Most online references I see are saying that the black plastic spring retainer is correct for a 69-72. I don't see how that could be.
Looking at the entire assembly, I *think* it’s the white one that I need, which is what I ordered. Will try it as soon as it arrives.
What I mention above seem to be supported by this guy too:
https://youtu.be/ra47zn8oOOY?si=H29dvKr_bL3uYivv