This coarse screen should keep most of the leaves out of the R side, where the fresh air intake is. Cutting the edges to fit the internal contours of the cowl while remaining straight at my chosen tilt angle took a few tries...
I've since learned that Ford published TSB 84-12-22 recommending essentially this same thing, although they suggested gluing it to the wiper cowl.
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These are also relevant.
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GO TO THE NEXT few pics...