Yes interesting, but most of all aggrivating! I didnt happen to read the warning about over extending the axel until i found a small piece of paper in the box when returning the first one. as for used ones the factory one did the same thing during removal, the retainer clips require some major coaxing to come out in my case the passenger side especially. And I'm not sure if i mentioned it in my last post, but NEVER remove both axels at the same time. This can result in gears falling inside the transmission. Work one side, re assemble and then move onto the other side. It may not occur on our little aveos, but I wouldn't want to find out the hard way, which is how I learn most of the time