The wrench @Ayune linked is 11” long, just used it today. Felt just about right to me, and can’t see adjusting the body side bolts without it (or something similar).
EDIT: And from a failure mode analysis angle, I bet the door starts to sag from people pulling themselves up or down from the cab, which eventually misaligns the striker, and that’s what ends up causing the pins to get sloppy. Caught mine in time, it’s still tight and was just moving the door a bit each time I closed it.
EDIT 2: And the thing about the full size tool that makes this so easy is that the head is offset out of plane with the body of the wrench (different offset on each side, for driver and passenger doors), so it clears the hinge easily. A flat s-type wrench or fan clutch tool wouldn’t be so easy to use.
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