DS window removal 1969 Valiant

that is not even close to how to remove the glass, your picture only shows the regulator attachment to the door glass, search my vdarts ragtop thread, i have a couple of links on door glass removal.

your window felts will have to come out & get replaced.
vent window& door glass come out as 1 unit.

If I were you I would tape the top side of your door & polish the glass in place.
No one sees the regulator/guts that move the glass up or down, Lawrence