I have a set of rotary doors and just purchased some early YJ paddle doors. Spent lots of time on door repair.
Here is what I have found.
Door Edge Seal w/ Moveable Vent (Right or Left) 8134851
The description for this omix part is wrong. I have a set.
The movable vent windows have a dedicated left and right, and pivot opposite of one another.
These seals don't go anywhere I've seen. They are simply extruded faux-felt lined rubber seals, approximately 30 inches long, 11/16 base, with 3/8 H x 1/4 "J" felt lined side which form inward to the felt side when channel is put into place.
This part
may fit the cj glass at the bottom and front but
not along the divider with the roll-up window glass. It simply isn't long enough.
I haven't removed my fixed vent window, so I can't confirm it
does fit.
You should however be able to use a scrap of old window guide channel, on the rear edge, which is readily available, and probably is getting replaced anyway if you are digging into the doors that deep.
Off to order some actual vent window seals now...