I will try to describe this as best as I can. Some of the nomenclature may be incorrect, so please ask for clarification if necessary.
2004 Sonata (same car with the bad clutch & flywheel from previous post).On the passenger side front windshield wiper, the arm fits onto a bolt that is threaded at the top. A black nut cap threads onto that holding the arm in place. The problem is that below the threads on this piece, whatever was hold the arm in place so that it moved is completely stripped. Now the arm on the passenger side does not move. How can I replace this piece? Thank you!