Will the doors from a two door hardtop 66/67 Satellite/Belvedere and a 66/67 Coronet/ Charger interchange? Aside from trim holes, are they basically the same? Thanks in advance, Bob

YES

complete door fits the same, differences in the glass, and the rubber block at top of wing frame.

Charger doors are not good candidates. The upper door frames have lots of extra holes for the door panel and the left door when equipped with a remote mirror typically has a huge 3 or 4 inch cut out. And if you want to get picky 67 shells have extra holes in the inside for different trim levels. These holes are noticeable with the door open.

Very true, not a good choice to use a charger door on any other car unless a racecar.