Does anyone know of a source for the vent ducts? My instrument cluster fogs when I have the a/c on.

It is a 78 F150, 460 auto, super cab.

 

junkyard only. i assume you have hte flexible kind in there now. replace it with a solid one form a later truck like 77-79 or one with a deluxe heater option.

 

Do you mean the duct or the duct tubing to the vent ?

The Vents are available.
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I haven't been able to locate a good used one yet. There are still a few more yards around here. I have only seen the flexible type tubing and they are all falling apart like mine. A friend of mine has an 85 Bronco that is tore down for a mild restore, I will look at his and see if it is the same. That would make the search a little easier.

 

his bronco should have the plastic one.

 

but will it fit?