Ford F1 Wiper Upgrade: From Vacuum to Electric on a 6 Volt Truck

Green 1951 Ford F1 truck with the hood open in the Atlanta Auto Restoration shop in Hampton, GA

In This Article

Not every job in our shop is a ground up restoration. Some of our favorite work is the small, thoughtful fixes that keep a classic truck useful on the road.

This 1951 Ford F1 is a good example. Mark walked us through a custom job on this truck, converting its original vacuum operated wiper system to electric wipers.

The problem with vacuum wipers

Many classic trucks and cars came from the factory with wipers that ran on engine vacuum. They work, but they have a reputation. When you press the throttle hard or climb a hill, vacuum drops and the wipers can slow down or stall, which is the last thing you want in a rainstorm.

An electric wiper motor gives steady, dependable wiping no matter what the engine is doing.

Engine bay of a green 1951 Ford F1 truck under the open hood
The 1951 F1 in the shop, hood up.

The catch, a 6 volt truck

Here is where it gets interesting. This Ford F1 still runs on its original 6 volt electrical system. The electric wiper system the owner wanted needs 12 volts.

Rather than rewire the entire truck or change its electrical system, the team installed an inline voltage converter that steps 6 volts up to 12 volts for the wipers. The truck stays 6 volt, the wipers get the power they need, and the vehicle keeps its original character.

Technician working under the dash of a 1951 Ford F1 to install electric wipers, with the wiring diagram on the seat
Wiring the new system from under the dash, diagram close at hand.

A truck with a family story

This F1 was passed down through the owner’s family. That is a big reason the job mattered. A small upgrade like this keeps a family truck safer and more usable without taking away what makes it special.

It is also a good example of how we think about classic vehicles. The best solution is often the one that respects the original vehicle while solving a real problem.

Custom solutions for classic owners

We do this kind of work for customers across Hampton, Henry County, McDonough, and the wider Atlanta area. Electrical troubleshooting, wire harness replacement, brake and steering upgrades, and thoughtful modifications like this one are all part of what we offer.

If you have a classic truck or car with a quirk you would like solved, bring it by. Atlanta Auto Restoration, 583 Steele Drive, Hampton, GA 30228. Call 770-946-8949.

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Mark Engel

Owner of Atlanta Auto Restoration. Mark got into the trade in 1986, trained in collision, restoration and refinishing at technical school, and has spent decades hands-on with classics from the Brass Era through the Muscle Car Era.

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