I have a 66 hardtop door on the drivers side of my 66 convertible. (had a 64 convertible door with the wrong door lock on it before) all I did was change out the wing vent pot metal piece without the vent window since it was clear and I had tinted wing vent glass. I also changed out the felts and rubber while I had it out just because it was easier,faster and I wanted it :lol: make sure to mark where the bolts are for the vent window and the stops. count the turns on this piece or your vent will be either too far in or out.