On my 64 the wiper arms bolt on to a threaded stud. When I went to get new blades I found my blades riveted onto the arm itself. Showed it to an old timer I know and he said they were severe duty... police cars, taxi cabs ect. He drilled the rivets and atached new blades with new rivets. On a side note he bought a warehouse full of obsolete blades in the early 70's and has a load of rare nos wiper blades and arms. If anybody ever needs something unusual. Scott Mirabella 1964 Fury Convertible 383 4speed LongIsland, NY ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.