All the zerrks except the lower rear pivot shaft can be done while the car is fully assembled. Zerks are threaded 1/4-28 and you'll likely only get about two thtreads cut into the thin steel, but that seems to be enough. Grease the tap, go slowly & any remaining small bits don't seem to cause trouble. I did mine in the late '80s & have yet to feel any looseness on anything. IMHO, the pivot shaft greasing needs distribution holes drilled thru the inner spacer, so save that one for your next axle or wheel bearing rebuild back there.
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