This isn't a huge deal, but I'd like to fix it if I can. When removing the wiper arm, there should be a key tab inside the spline so you can re-align the arm properly. Problem is, one of my arms is missing one. And I just can't seem to get the arm on just right. So miniscule it doesn't matter. But when I went to the parts dept. at the local dealer, the kid looked at me like I gave him a tough algebra problem. Essentially, he told me they don't have them nor can they get them. So does anyone know where to get these? New, used, OEM, aftermarket....homemade, I don't really care!
Local junkyard is useless...apparently, no one crashes rams around here...

I think the key part of the wiper arm and isn't available separately. You'll probably need to buy a new wiper arm.

pick a part/junk yard