a/c box lower dash cover ?

[69 mayflower]

Any body out there have a picture of the a/c box lower dash cover for a 69 b body that is installed or can tell me what hardware attaches it to the stud that comes out of the bottom of the air circulation/fresh air chamber. I have the three screws that attach it to the bottom of the dash but don't have the nut, clip, or whatever attaches to that stud. I'm just trying to make it as correct as possible.

 

[Sixpactogo]

Mine was missing too. It has been a while but I think the stud is a 1/4" 20 thread. I just put a flat washer and a nut on the bottom. Not really sure what the factory used. I spent a little time looking through the parts book but never found any reference to that housing. It's probably there but I didn't think it was worth the effort. Maybe someone has an undisturbed one that can shed some light on it for you.

 

[69Bee]