China of course.I haven’t purchased any Autozone parts for ages, so I gotta ask. Did you catch the country of origin on what you installed?
Actually it looks like the rubber just deteriorated from time, I was able to easily pull the rest of it off with minimal effort. Suspension parts, while they last a long time, are still wear items and I don't expect them to last forever, especially up here with all the road craters.It wouldn't have been covered under warranty anyway. Those boots are consumabe and problably someone drove over something that tore it apart. (happened to me) Once the boot is torn there is no easy fix, but a complete replacement of the boot and if caught "Early" no damage to the ball joint, but if not one gets what you have.