That's because they ARE two different things. The question is, which one does YOUR car have? 1967 from the factory has the first — the narrow lockstrip. Is that what your windshield gasket looks like? For future reference, if you are asking questions on this forum, tell us the year, make and model of your vehicle, and provide photos of the part in question. This will avoid a lot of useless back-and-forth trying to establish exactly what we are talking about.