I need to purchase 2 sleeves for the back of my car & I was wondering how other brands like Ground Control & others are mounted on the shock. The ones that I've got use I believe 3 allen screws, but one side of my car I can see that the sleeve is not sitting correctly & that the allen screw has bent the sleeve. I want to fix this before something else happens. My front ones are fine. If I can find one that uses more allen screws or some other means that would be good. TIA.