I replaced these two items with a 2008 HHR 3 years ago. Since then I've had to replace them again because the ball joint failed. A guarantee is difficult if not impossible to claim. I will be replacing the ball joints with the ones I remove so they will be ready when my new ones fail again. However, they appear to be much better than the stamped steel versions, which appear to fail in a more catastrophic state. It also appears to be the same devices as Dorman.
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