75 valiant build, go back stock /6 or v8

From experience the back glass from the four door will not fit. At least it did not fit on a 73 dodge dart swinger. I do not see it working in a Plymouth Valiant either. Width should be the same but the height of the glass will be different do to the angle of the glass from a 4 door to a 2 door. With all that being said if the Valiant 2 door is a post car(sedan) it will probably work but if its a hardtop I don't think so.
Kevin