What's missing.

'67 uses a one year only plastic lock strip. As Kendog mentioned, they can shrink quite a bit. Unless it's a restoration, most people like to use the '68-up stainless molding instead.....along with the more available windshield gasket. Otherwise, find a repro lock strip that will work and call it a day.
The original poster is talking about a convertible.
ALL 67-69 Barracuda/Dart convertibles use the same gasket, the convertible gasket uses the plastic lock strip on all three years.

There are a couple different options that I have heard people talk about. no experience with either.
A. Use the standard convertible gasket and fit the lower stainless, some said the glued it down
B. I have been told you can use the 68/69 hardtop gasket and the lower stainless, on this one I was told they used the clips.


Alan