NASA we have a problem...
I approached Soonercruiser to loan me the Barracuda backup light he has so I could reverse engineer it.
He graciously did so.
When I start the RE process I always look for a part number to name the part.
In doing so I discovered the believed to be Barracuda housing is in fact a 67 Mustang housing.
C7ZB-15A509-A
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Looks like a PO did the swap.
This also explains the 1 wire OEM chrysler pigtail vs the 2 wire pigtail issue.
I suspect Ford used one housing to power the other hence there being a male and female connector on the housing.
Swiped these images from Mattax's backup light thread
67, 69 Barracuda and similar early reverse lights
and the 67 housing is reproduced
1967 Plymouth Barracuda Back-up Light Bezels
67 Barracuda backup light...
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