That must be a door within a door thing. I looked on our 55 and I do have the snakebite holes partially up the latch side of the FRAME, not the door. On the 55 they had a back gasket on the jamb of the door opening frame. The gasket would slide over the edge of the frame and the inner skin would be riveted thru the gasket into the jamb extrusion. In my mind, two rivets adjacent to each other thru a back gasket would have less “tear out” than one rivet. Maybe on the 63 they eliminated the back gasket on the door opening frame and placed the gasket on the edge of the door itself. But I see no reason for rivets. Other than that, I don’t have a clue. Good luck and let us know what you find out. Bubba
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