73 & newer dusters-- do not have vent windows, do duster's have vent windows? the inside trim on the earlier cars is different than 73-76
if you are using 74 doors complete (regulators/glass)-- then you will be fine-- you cannot mix/match glass & hardware from different doors. 73 is a change over year-- so 70-early 73 might work 74-76 has different stuff-- do some searching -- -- do not know about body lines --but 67-76 cars have a lot of interchangeable parts. Lawrence