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If you get the whole VW motor and pivot assembly, it can be cut and welded to the right pivot spacing for an F-series. I don't know if the modified assembly will clear the radio supports in a 48-50, but then you could use the VW arms and blades. It is one way people have gotten 12v electric wipers, but it isn't a drop-in solution. I'd be amazed if the VW arms would fit on F-1 pivots, the VW are surely metric.