Elec. Wiper Motor 6V.

My 51 Plymouth had 6 volt electric wipers. I also had a 49 Dodge pickup that I rebuilt the vacuum wiper motor, ok I just took it apart cleaned it and greased it up and made a gasket out of a cereal box. The secret I found to the vacuum wipers was to step on the gas then let off and the wipers wild go like crazy for a second or two.