I don't want to buy the whole thing just for that. Just need to anchor the stem in the little notch to keep them aligned. If all else fails, I'll just super-glue them in the straight out position.
Here's what I did. I had some black ABS plastic that I'm using for another project. It's about as thick as a plastic business card. Same as that Team Chevelle membership card Al sent ya! You can cut it with scissors. I cut two strips about 2.5" X 1" and inserted them from the back(inlet side)into the gap between the 3 horizontal louvers that move and the 2 vertical ones that don't. (Note: My dash is out of the car and the vents are out of the dash. When I did it, the 2 stationary louvers were horizontal.) Using long needle nose pliers, I wedged it in and pushed it forward until it pushed the louvers into the half circle notches. (Ya gotta snake it around the open-closed door but it will go) Then I super-glued the ABS into place. It's not great, but it works.
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I don't see any other way to fix them short of cutting the housing open and that seemed like more trouble than it's worth to me.
