When I restored the '48, I paid a bunch of money to get the old wiper motor rebuilt because I wanted to keep everythng original. Since then I've gotten caught in several rainstorms and even with the vacuum boost on the fuel pump, vacuum wipers tend to quit when you need them most. Being able to see is important - right up there with being able to stop! Electric wipers are a possibility as the next safety upgrade, to go with the LED lghts.

I would seriously think about going to the electric motor. I think GMWillys may have electric wipers on one of his vehicles - but I've not heard anyone telling bad stories about issues with electric morors.

Two of the hig $$ commercially restored wagons at JeepFest 2019 had electric motors, so someone thinks it is a good idea.