1972 Dodge Dart Question.

I have a 72 Dodge Demon. I am able to pick up a 72 Dodge Dart 4dr. The front ends appear the same from the winshield forward. The Dash assembly appears the same. Column appears the same accept the steering wheel. Are they???? Also is the rear window trim the same as a 70 Dart? Winshield seems the same also. Of course The seats and doors are different than a two door. Are the lights on the rear interchangeable with two door darts? Any help is appreciated.