They will Fit as Long as they are the same year range 77-79 and 1980 to 1990 will interchange.
The most difficult part is that the window trim and the upper surface of the door is usually different. If it has to be swapped, you almost always have to remove the windows to swap the trim pieces.
The same holds true for all the Box wagons, so don't forget to include Impala, Bonneville, Catalina, Safari, and the Buick models as well in your search. Good Luck.