[twindman]

The door 'sag' is on the driver side doors that swing horizontally - 2 doors in the opening. So when they sag, the lock tabs barely catch on the edge. So a few bounces down the road and they go loose. I always lock them but the one without the lock never catches, so the locked door holds them shut - most of the time. I think 2 or 3 times even the lock jiggled/bounced enough to come completely open while driving down the road. Now that I am trying to remember the doors, I can't think of how it all fits together, but the sag does cause a problem somehow!?!?!!