the 'division bar' is the actual U shaped metal piece that's the "bones" of the vent window assembly - the vent frame rivets to it and it has a piece riveted to it at the bottom where it screws to the door .... I've gotten that bare piece in the past, from Golden State I believe ... it doesn't include the
piece I think you want, which is part of the whole vent window assembly and is riveted on too
the felt window channel is the part that has the chrome bead edge to it, and a corrugated metal core, that fits in the slot of the division bar - all I've seen lately don't have the chrome bead edge
the small metal "striker" on the division bar that the vent latch locks onto isn't available anyplace I've seen, unless you buy the
whole vent window assembly [mine restored]
Bill