Those look like they might be from Rocky Hinge (
Deluxe Hinge Kit With Large Latches ) which are very good and very strong if all the parts are used, but the bottom strap was cut back. Whoever did the doors cut out a huge hole to make installation of the window track and power operator easy. Like Steve says, hopefully you have the bearclaw latch that Rocky sells in the kit too, which will triangulate your support with three strong points (asked about your front latches back in post #2 this thread, and Steve asked in #29). If the hinges are Rocky's and if you have bearclaw's and they're adjusted for smooth closing (not stressing the hinge mounts) I'd say that weatherstripping just might solve your problem.
Either return this forum to what was or get the HELL OUT!
Dead!