I ran the Hardrace UCA ball joints for about 2 years. One day while inspecting / changing brake pads, I noticed that the front ball joints were actually spinning in the UCA hole when the knuckle turned 😮. The snap ring was the only thing holding the ball joint in. The ball joint literally fell out when I removed the snap ring. I replaced all 4 with new Honda control arms. Needed less rear camber and ended up just buying the Megan rear UCA. It's not a well designed piece. The ball joint rotates unless you use oversized wrenches and serious power to lock them down. In the front I now have to use an SPC adjustable upper ball joint, because I broke both front knuckles from using an offset lower ball joint. The increased leverage from the offset and RCA causes the smaller lug on the front knuckle to crack and fail.