I feel like this might have been covered, but if you have to replace your OEM sway bar endlinks, Delphi is a good choice. They have a nut on the inside that you can put a wrench on to prevent the bolt from spinning when you remove/tighten the nut. The OEM design requires you to use an allen key and IMO that design sucks. The Delphi links have the allen key option too and they're cheap.