I think the doors changed in '74 or '75ish - the hinges changed but you can get adaptors to put that right. There were also subtle differences through the years such as vents along the front edge or lock pulls over in handle locks but I don't know when these occurred.tracybaz said:can someone advise me. i have a 72 lhd bay. what i need to know is..do early and late bay doors fit...are all windows the same size...can i fit a rounded early bumper or late square one.. thanks.