Terrible. We specifically bought Delco's professional AC range because we were looking for quality parts. Not correct. I'm not sure where AC Delco makes its parts, but the bolts and nuts that came with this ball joint assembly broke off very easily, resulting in it taking me a lot longer than it should have to have to fix the part to replace. I had to purchase class A replacement nuts/bolts locally and am hoping to finish the job this weekend. I bought Moog parts for my GMC Sierra truck. I also had to use Moog parts for my Sonoma. The Moog parts were also oiled.