I installed them on my JK 2015 2-door. No problems for 10,000 km. Because this bushing is smaller than the factory bushing, the factory rod stem is too big. These are 17mm bolts, so a quick trip to the auto zone might fix this issue. When they arrived in the box they were glossy and eventually turned matte black. It's not because they're dirty, I think the coating is just showing its age.