1968 Plymouth vent window question

I am putting my doors back together "1968 Plymoth 2-door pillard coupe and need a little help what is the little rubber piece that screws into the back of the vent window where the roll=up window tops out called and who sells them.

If you have a B-body I think you are referring to the rubber
vent window stops...the kind of look like a triangle.
I sell them in pairs, just e-mail or PM me

Exactly, Thanks!!!