Sheesh, yeah I meant ball diff. I am a dummy. I still have Traxxas Slash on the brain from the weekend. That has the slipper haha. Thank you for the tip. It was slipping like crazy. My buddy obviously never set it up but that is probably good for me since the balls and rings don't feel pitted from extensive sitting pressure. Any advice for the rest of the car for a basic asphalt setup to start with?