OK just got done!
Typical Toyota high quality stuff!!
Looks like somekind of bronze bushing inside pivot.
on the VW it's just cheap white metal / zinc cast and pressed steel sleeve I think.
Was not readly necessary but better off being on top of it.
Pivots are held up in place by some small circlips.
One was worn, didn't have any snap rings right size so bent it back in shape for now and thoroughly flushed with grease.
Later,
Hugh

'86 SR-5 Extra-cab 4 x 4, 2" BL, 33 x 12.5 x 15R M/T on 15 x 8 rockcrawlers ( 3 3/4" BS ), 22RE 5 sp , 4.88's Detroit True-Trac front, V6 open rear, 24 mm Sway-Away + Rancho 5000's, removed sway bar, no-rust south US bed, Ramsey 8000 winch