Need source for 79 T-Bird AC/Heater parts

I finally got my T-Bird blowing ice cold air. The problem is it is blowing it out the defroster ducts instead of the panel registers. [img]/phpBB/images/smiles/icon_cry.gif[/img] The problem lies in the vacuum selector valve in the temp control center. It is leaking vacuum so I don't get vacuum where I need it and in the quantity needed. The part appears non serviceable. I have cleaned it with brake cleaner, blew it out with compressed air and sprayed some litium grease in it but it makes no difference.
I would like to find one NOS because a used one may not be any better than what I've got. The part number is D8AH-19B919A1A. Anyone know where I can get my hands on one of these jewels?
Thanks,
Kywookie

Try this site: http://www.best-birds.com/ I didn't look for your specefic part but it sounds like they might be able to help.

Guess what? It is still available from Ford [img]/phpBB/images/smiles/icon_spin.gif[/img] Gonna set me back $75 tho [img]/phpBB/images/smiles/icon_cry.gif[/img] Oh well. It's only money [img]/phpBB/images/smiles/icon_rolleyes.gif[/img] The guy from the Best-Birds website said he had some used for a reasonable price, but like I said, I am sorta leery about a used one.
Kywookie