Duct gasket question

[rodrun36]

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

[copperheadgs1]

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.