Years ago I had a couple of Scouts. The Scouts' hubs were similar to Warn (if they weren't Warn) and used a soft washer-type part which, when bent over the mounting bolt head, wouldn't allow the bolt to turn. I know some Jeeps used the same type of locking device. I have several that I am thinking about trying, tho they don't seem to fit as well as they should. Has anyone here had any experience with them?