Windshield gaskets

I'm not sure why this so difficult to believe.
The Brite-lock strips for 1967 are rigid and nothing like the strips used in the '70s on the Rams as well as by other manufacturers (such as Audi). Those later lockstrips are narrower and flexible.
These do not bend easily even with heat. When I bough the repops, only straight sections were available. To replace the pieces for the notchback rear windows required gentle heating and lots of patience. I still broke one. Fortunately I was able to find an NOS piece at a swap meet.

In cross section, they look like this.
upload_2019-4-23_7-49-15.png

The first company to sell repops was Mitchels and then Year One carried them. Since both are retailers, don't know who was making them. At that time, new gaskets were not available. I still have the originals in mine. We used a 3M weathertrip sealer where it seals to the metal flange.

As the lockstrips lengthwise shrink over time, the gaps need to be filled with little cutoffs of lockstrip or a leak can develop in those corners.

It was a neat system which would have been OK if the plastic had longer term stability. :(