While the F-150s roots start in the 1940s, 1975 marked the introduction of the F-150 name. Introduced as a heavier duty variant of the F-100, the 150 would fully replace the 100 in 1984. Since then, the F-150 has been the best selling F-Series truck, and F-Series trucks have become the best selling line of trucks in the world.

Like the name implies, these Pro-Billet Distributors will require a crank trigger to fire the ignition. These distributors do only that, distribute the spark. There is no trigger mechanism and no advance. They are meant as high performance, racing distributors. They are easy to identify with the lack of wiring and their lower stance.