Has anyone used the kits off ebay or do I need to buy the parts from GM?

These are the ones I found but not sure if there is a quality difference.

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

Thanks for the advice

 

As with anything you get what you pay for. It all depends on how long you keep a vehicle on average. If you dont keep them long then as in a few years go for it. I personally keep them till they are ready for the junk yard. So i like autozone and the life time warranty as my labor if free. It looks like a nice kit but no way to tell the quality and im sure its not close to OEM but i never use OEM parts.