brhulen

I ordered new center A/C vents for my 74 and after installing them they were still very loose. I did remember to install the little rubber washer in the middle. So to remedy this I removed them and laid about 1/16" of clear silicone on each pivot point in the housing, let it cure then reinstalled the vents. They are nice and firm now with no sag or rattle yet still pivot nicely. They are as good or better than new. Thought I'd pass on the tip.

CQRT

nice work !

7T1vette

Did you install the foam [or felt] seals at the top and bottom of the vent opening? Those side seals don't hold up for very long.

brhulen

Yes, I sure did!

7T1vette

The felt strips normally would rub on the top and bottom of the vent deflectors and keep them from moving around. Do they not make contact with your deflector inserts?

brhulen

I would imagine they are probably worn down somewhat but when I first installed the vents I could clearly see some slack in the ends, hence the silicone beads. The silicone is not visible at all and really tightened things up nicely, similar to the vents in a modern day vehicle. They move easily yet stay put and that was my goal. Obviously the quick fix solution is not for everyone but I believe it'll work just fine. It's not quite a "Bubba" fix but I can live with it.