I have a upr shifter that just tightens down with an allen screw it has a button in the center to engage the auto locking mechanism. I was wondering how to remove the factory shifter. I didn't see a set screw anywhere. It has some back and forth play in it but I wasn't sure if it just unscrewed or what. But this upr shifter has some sentimental value and it'd mean alot if I could get it installed.