If you mean the two rubber pieces that go alongside each of the defrost ports, I plan on cutting those from some foam (fairly soft). All they do is block the air from running down the trim instead of onto the windshield. They would be similar in shape to the metal clips, basically triangular in section.
Where did you find replacement clips? I have some that are pretty much rusted away, but plan on bending some out of steel strapping material.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.