71 Demon LCA Bump Stop?

That is interesting but seeing is believing. I bought many 70-72's and not one ever had those narrow bump stops. I had some with the rubber gone and nothing but the fastener in place. It could have been on one of them. I have a shelf of control arms and not one of those bump stops. Could they have been a specific price class or location of build? I did just put them on a 72 challenger recently. they came with the kit.