Hello, I recently purchased an 82 Mustang GT. It came with rear hatch louvers, and I confirmed on the Marti report that the car was originally equipped with rear hatch louvers from the factory. The guys at the resto shop are trying to determine whether the louvers on the car are the factory originals (or at least are mounted as were the factory originals). The louvers are mounted with two hinges at the top just above the rear hatch window frame, and are secured at the bottom with two bolt posts and screw caps that are located just below and to the side of the rear hatch window frame bottom corners (pics below). Is this the factory original mounting setup for the rear hatch louvers, or did a prior owner drill into the car to add these mounting posts for some aftermarket louvers? Thanks in advance.

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