So my '71 240z has a few door issues.

A) Currently (or just before I removed them) I had to PICK UP my door to shut it. Driver's side only, as it's much worse than the passenger side. It would sag 1/4-1/2". I was thinking this is a hinge issue, but I'm not sure. That's a lot of sag... Might be the door itself. I don't know. I don't really remember but I think this started after changing doors.

The bottom of the door, when the rest of the door is aligned properly, sticks out maybe a little under a half inch from the body. I can stick my finger in the gap (see pics). I thought the door might be twisted so I put on a spare door. Same problem as before.

C) I pretty much know the problem here, but it doesn't really latch. Just towing the car across the yard, the door popped open a few times. I'll see if that goes away once issues A and B are amended.

So, as far as I can tell, the problem is not the door itself (or I have two bad doors), and although I am going to rebuild my hinges anyway, I don't think that's the whole problem. They don't seem to have enough play in them to cause my problems. I also don't have any weather stripping in currently, but I don't see how that could cause my problems either. Also, the passenger side has the same problems, just nowhere near as bad.

Pics:

Front of door:

Rear of door:

So, ideas? Anyone had a problem like this before? How did you fix it?

How odd! Does your car have any structural issues? Is it solid? How are the frame rails?

How odd! Does your car have any structural issues? Is it solid? How are the frame rails?

It is apparent that it has been in a minor fender bender, as the radiator core support is a little banged up, and clearly re-attached. However, as far as I can tell, the frame rails are completely straight, and considering how minor the damage was, I have no reason to believe the car's structure is compromised. It has some rust, but nothing serious.