High quality. Perfect fit for the 2004 f250 Powerstroke. The eyebolts are the correct thread pitch and length for this truck and mounting bolts and a yellow O-ring were included. There was a slight catch. I put the right side in one day, then I had to drive 100 km and everything was normal. Two days later put the left side and left but couldn't get rid of the ABS signal device. I checked the new left sensor with an ABS ohmmeter and found it to be faulty. I just took the sensor off my old hub, installed it on the new hub and everything was back to normal. I've heard from people before who bought new ABS sensors that were faulty. In this case no problem as I had a good original.