door glass, rear quarter glass, what years inter changes?

[rusty70cuda]

HI I have a 1974  challenger that has no door glass and no quarter glass. a friend that runs a yard has several parts cars a 70 and a 72. I have a 73 myself for regulator parts. what will inter change to put glass in to my 74? or should I buy loaded doors? IJ have seen 70,7273  door glass that have a slight curve on bottom, I have seen unknown year with a straight bottom. They all seem to have some of the same holes(curved bottom) but the straight bottom is completrly different. Now are the quarter glasses all the same? thanks for all the help!

[Tejas R/T]

My book says 70-74 all interchangable except for convertible.
 

[72rtchallenger]

 

[Chryco Psycho]

the sliders & tracks changed in the doors , 70-71 were different than the 72 newer
 there is a difference inthe 1/4 windows in 70 only using different weather strips

[rusty70cuda]

ok the sliders and tracks were different but weren't the holes different? I believe some had more holes than others. Dam justd woke up from a nap lost parts on the fleabag and can't type for