63-66 hardtop doors are dimensionally the same for Valiant, Dart and Barracuda. However, a 63 car has a different latch on the door and the jamb. So in that sense
a 63 door and car are one year only. Trim holes will differ between years and models. 64-66 doors and vehicles are all interchangeable. This is also true for 2 and 4 door
sedan doors as well. I believe there is a slight difference in 63-66 wagon rear doors.
