I pulled the center duct out on my A/C 72 Skylark to get to the dash speaker. Once out I noticed that the foam gasket where it goes back into the mail duct trunk was falling apart. It's virtually wothless now so my question is can you find a new one or what are your suggestions on something else to use to seal it? Thanks
Get some soft weatherstripping from the hardware store. It does not show anyway. It does not need to be a perfect seal as it never was anyway. It is more just to stop vibration anyway.