bad shoe, on here sells a video that tells how to setup a 9 in rear. on that he covers setting up a traction lock. there is a tool for setting up clutches, but he shows how to get by without it. my last one I setup, I drove everyday for ten years. it worked as good the day I got rid of it as day I built it. people are always wanting to give them a bad rap. never been my experience. but my ride is not a crawler.