FWIW...
I had a trunk seal issue and decided to do a comparison test.
I ordered a few of the top seller's offerings for "Correct" 1966 Trunk Weatherstrip and this is what I found.
This may help you pick the one to help with this issue.
Cheers.
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When I die, I want to go peacefully like my grandfather did, in his sleep.
Not screaming like the passengers in his car. 
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