How many wires are on your non concealed wiper motor? My 76 wiring diagram seems to only show one switch and wire setup so I’ll guess yours has three like my 77 with concealed wipers. Assuming they are the same as concealed which I think they are I’d imagine all you’d need is a concealed wiper motor and a set of wiper arms.
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1977 Trans Am 400/4speed (swap)
Brian
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