The windshield wiper arm on my TR250 does not fit very tight on the knurled end of the shaft on the reproduction wheel boxes. I saw a forum entry from 2015 where JerryVV said he, and other TR250 owners, had the same problem with the reproduction wheel boxes. This is causing the wheel box shaft knurled end to turn inside the wiper arm. The knurled end also seems as though it was made out of a very soft aluminum thus it seems to have worn down even more than when new. Is there anyway to replace the knurled end of the shaft with a knurled steel piece instead of aluminum? Any idea where I would get steel ones. Thanks!
Bob
Bob