I'd go look at my doors, but they're currently kind of buried, but I don't think there are the screw holes on the bottom of the window opening that buoymaker circled (I could be wrong), but there are two tabs on the bottom of the window frame that I recall take bolts and nuts that fit below the door window opening flange. There are screw holes on the front of the window opening that correspond with the tabs on the vent window frame (see pic). And there's one hex screw that holds the bottom of the channel to the lower bracket. The frame has a nut welded on it to receive that screw.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.