I'm not going to say I know for sure where the ball goes. But in my expreience with this kind of problem, the best way to figure it out is clean the seperator plate clean and look across the surface for the hole that has a shiny bevel around it. To help farther, you only have six places that it sits in. Look for the hole that is shiny as the ball will rub it when it applies. That is the place it goes. Won't work with a factory plate as well due to all of them having shiny around them to some degree. Hope that helps.