Technician could not align with these installed, I had to purchase another set locally while my truck was on the alignment post and remove this debris. They didn't rotate at all to allow for orientation adjustment. They're made from some kind of soft but surprisingly brittle metal pot or powdered metal, and it looks like the truck's weight was enough to melt them together forever in my case. Most of the little locator tabs on the sides eventually broke off, a few tabs were in the same box whenβ¦