Thanks, Danny. I called my friend at the Benz dealership out here and he mentioned something about an Allen keyway. I looking for it, but don't see it. I'm expecting to see it in the center of the bolt (i.e., like the keyway on the steering box adjusting bolt). My lower ball joint bolts are right here in front of me and they don't have a keyway in the center. What am I missing? Thanks again, guys.