Hello, I just took apart a 94 that has had the auto hubs changed to manual. The hub/rotor was held on by the outer nut, a keyed washer and an inner nut that has a nub to lock to the keyed washer. My question is, should there be a key also in the spindle groove? The guy helping me seemed to think there should be, but I do not see how it would do anything. Any help would be greatly appreciated!