they make them reproduction,,,,
when my uncle was building his 56 cameo he bought a NOS visor and the fit to it was horrible,, he than tryed a repo visor and it fit alot better
just something to consider
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68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside
64ImpalaSS 68 large journel 327 turbo 350