Looks like their powder-coating process could use a little work. Or at least at the time they were made. lol
Damn, glad you weren't going fast around a corner when it happened.
That whole spring looks like junk. Only 3 years holy shit that's bad. Sounds like a quality control problem.theres a bit of rust on the components there though. if you nicked the coating on the spring while installing it, it could have caused a spot for corrosion and eventually a break like that.