I am not quiet sure which part of the assembly you are referring to. The dividing bar has a channel (felt lined) that the window runs up and down in. The vent window has a molded rubber piece. If you are referring to the dividing bar, I used a 3m adhesive from any FLAPs.
I pivot for the vent window is inside the door.
But if you are to this stage you are getting close to finish line. cheers.


~ HB
1966 Chevrolet K-10 | Ghost: formerly Flappy Fenders | In the Stovebolt Gallery
1962 Chevrolet C10
1962 Suburban