Let me clarify:
Most original bearing suppliers provide parts to GM for 5-10 years (varies by platform), after that the aftermarket companies take over.
For bearings there are two types of aftermarket suppliers, the name brand companies (Timken, KBI, SKF) and the cheap China (or equivalant) parts.
My comment about an "inferior part" was directed to the China parts.
If the replacement part was made in China (or equivalant) I would not put that on my any car I own.
If it's a name brand company, you have a better chance that it meets some level of performance but it is still not as good as the original OEM part even if that was marginal to begin with.
The Kappa part was manufactured by FAG/Iljin.
Last edited by marq; 12-16-2012 at 05:11 AM.