'67 Notchback Roof Rail Seals

Wondering if this is a situation of you get what you pay for...

I bought metro roof rail seals part number RR4001 A and B. Struggling at the moment to get them installed.
Starting at the top of the wing window working your way down towards the door you get to a small metal tab which looks like it would coordinate with an indentation in the rubber seal but they are several inches apart. Not having seem them installed in the first place I'm not quite sure how they are installed.

It also appears RR4001 A is for the passenger side and B is for the drivers side.

Couple questions
Thanks Again...Jim

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