I shouldn’t rely on my memory, it’s clearly lacking these days. I know I looked at this wiper stuff in the parts catalog before, but obviously its vacated the premises

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According to the ‘65 parts catalog, the LHD and RHD wiper harnesses come up the left side of the windshield frame, so the connections at the motors are all on the left.
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The RHD wiper is 85110-60010 and the LHD is 85110-60030. My ‘63 45 and ‘65 40 only have one hole to the right of the motor in the windshield frame. Both are LHD but the ‘63 has the lower mount motors and the ‘65 40 has the higher mount motors. ‘63 45 parks left, ‘65 40 parks right.
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No idea why the ‘63 45 has the RHD motors and the ‘65 40 has the LHD motors.