Soft top doors were the same from some time in 1963 when the shape of the soft top doors change. The why to time is if the doors look like the ones your thinking of buying and the early style door that were close to the shape of a CJ5 Jeep. Because I never seen any soft top made after 9/73 can't be certain if the bows and doors have the angle. Have the seller put a straight edge on the outside at the back. All the bows and doors I have are straight. Bought some bows and another set of doors at a different time I do not know what years they were off of. Just know they are straight. Not sure if any of the aftermarket bows are being sold individually but believe some had an angle B pillar.
Really no set years. Mainly because Toyota offered hard doors with the FST in most markets. So much today could be aftermarket or from another market. US never had hard doors or ambulance doors on a FST. The ambulance doors the top is removable. Also the parts system continuely is deleting parts from the system with every upgrade. If you are thinking of running FST doors without a top I would suggest a complete B pillar bow and door header at the very least. Years ago when top and bows were still being imported from Pakistan I bought a bikini top that fit the windshield channel and door header. Ties everything tight together.
