wiper pivot repair?

There are 2 bronze bushings about 3/4 inch long at each end of the cast housings.
I find much more wear in the left hand pivots. Left is under more load after all.
I often find the pivot shaft worn nearly as bad as the bushings. too. This forces me to use good shafts from right pivots in rebuilding left pivots.
Anyway... They aren't easy to rebuild. My advise is seek out a good used pivot from a late model donor or at least a dry climate location.