Wiper Linkage-Another Repair, Another Headache smh Someone help!!

If the passengers side pivot post is fecked you can bet the farm that the drivers side is severely worn too. It's the one that catches all the labor and subsequent wear. Motor drives the left pivot first, left pivot in turn drives the right pivot.
Pivot assembly is about 3 inches long. There's a bronze bushing in each end only 1/2 long. between the 2 bushings is a cavity where a lot of crusty from a rusting shaft accumulates. These assemblies are far too much trouble to take apart for proper rebuild ( been there done that ). No vendor offers new shafts for them.
Knowing that a half assed service will lead to continued noisy operation and repeated problems with failing bushings,
I would pull the instrument panel and whatever else necessary to remove and replace both pivot assemblies with good used ( hopefully from a dry climate car ).
Do the aftermarket reseal kits w/grease fittings on the newer ones. Be done with it for years to come.