Re: Stewart's 1955 Packard 400

Posted by HH56 On 2023/1/29 22:11:36

I think the front of the plenum is molded fiberglass or resin material and the back is the high density water resistant or asphalt impregnated cardboard often used in door panels. Not sure what kind of material was inside for the separator but it did not seem to hold up -- at least the cardboard part connected to the heat/defrost diverter did not.