I don't know what to tell you exactly. I've never had a problem taking those out. I guess I need to mention the basics. You probably have already done these, but, bear with me. I assume you have the door panel off, the glass unfastened from the regulator, and the regulator out (or at least down in the bottom of the door). Slide the glass all the way down....even remove the bottom stop if it has one. Remove the cat whiskers. Unbolt the vent glass frame assembly. Work the glass out of the channels and slide it up and out (maybe have to rotate it) or pull the glass and vent assembly out of the door as an assembly if you have to. In changing just the channel fuzzies, I was always able to do that without removing the glass. Good Luck!