There is (was) a brown plastic bushing(?) that held the arm directly off the wiper motor to the long link that actuates the wipers on my 74 Swinger. Where can I find a replacement?
NAPA also sells them in 2-packs.
Tip: Heat in cup of very hot water for a few seconds to soften - makes it easier to press into the hole in linkage. Use channel lock pliers, and don't forget to fill the "cup" side of the nylon bushing with white lithium grease before snapping the linkage together.