Side glass swap question .

Hi guy's , I have someone that wants to buy the side glass that I have and I want to make sure he wont have any problems first . I have all the side glass from a 70 to 72 Dart and he has a 69 Dart . I think that they would fit but I'm not a 100 % sure if there were any differences between the years of how they mount to the tracks . Anybody have any input on this subject ? Thanks in advance .