I've removed them with a small flat blade screwdriver, either straight or bent at the end, inserted behind the little clip. Pointed end of a can opener has done it as well. Keep in mind that if you tweak that little spring clip a lot, it has been known to fall out of the wiper arm when you pull the arm off of the post. If this happens, you can easily tweak (bend) the clip and then insert it into the arm.
Last edited by cmayna; 03/30/2020 3:27 PM.
Craig
My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.