sizzler i'm sorry but thats not true if you take a look at any place selling doors such as motorsport you'll notice for the door shell. the years are as so
and then ofcourse the 2+2
so i'd like to see you try a door from 73 or below or 76 and above and make it fit pefectly rightplease correct me if i'm wrong
motorsport also has a different part number for the manual and automatic starters, but accotrding to nissan they are the same part.
whilt the door is probably the same, it could be where the internals such, as the window and locks mount in that are different, nessecitating a different part number.