Hi all. My father and I picked up a 65 A100 5-window over Labor Day weekend. It's an ambitious project, but it was too cool to pass up. The previous owner had it converted to early Ramcharger drivetrain, which makes it the only 4x4 A100 truck I know of, or can find on the web! What we can't figure out is the story behind the back window. It rolls down into a tailgate that unlatches and flips out into the bed to allow pass-through access from the cab to the bed. We can't find any info on it, nor pictures of any other trucks with this option. Dodge guys that we know have told us that no trucks had that, and that it must be custom. We have been in the custom car/truck game for a long time, so we can usually tell when something has been cut up. Also, the truck was next to a building that burned (truck did not burn, but the paint suffered hard!), so all of the other bodywork has been exposed by the heat, yet there are no visible seems around the narrower-than-usual rear window frame. All of the metal work appears to be stamped, die-cut, and pinch-welded, like it came from the factory, and the window and latch mechanisms fit and function like bespoke units. If anyone has a clue or can point us to verifiable info sources, we would really be grateful to you.