I have been helping my good friend with his 1940 Ford 2dr sedan. The original wiper stands are in OK shape and will work with the addition of an electric motor from Speedway Motors. The problem is that along the way someone removed the knurled piece off the end of one of the wiper shafts. I took the other one apart to see what is missing. It appears that we are missing 3 small pieces: the knurled shaft end, the special nut that holds it to the shaft (end is slotted so it looks like a screw) and a small washer with a knurled edge. Is there a chance any of you might have suitable replacement parts? My guess is ones off of another car of similar vintage might fit. Any help or advise is appreciated. Thanks!