Several years ago I had a '48 Chevy pickup. The wipers were almost worthless. I blamed it on being vacuum wipers. One day I was watching an old 1940's movie. The actors were driving along in the rain in a 1940's Chevy car. Their wipers were working just fine. It gave me an idea. I found me a NOS wiper motor and it worked great. Maybe not as good as electric, but I could drive in the rain with no problems. I hope this will help you with your decision.
