thats the problem, if the vehicle didn't come with the factory controller. it isn't available as a add on item. the pendulum electronic controllers are junk. even if they have a huge following. no i would not put a old style kelsey hayes unit on a vehicle with anti-lock brakes. having used a max brake system. it worked just like the factory controllers that are now available. leaving the aftermarket with the cheap unsafe electronic units. i don't care how much people praise their electronic units. if you haven't used a brake smart, smart brake or factory controller you will never understand how dangerous those electronic units are.