First I want to say that this is not a fake. They are a shell welded around the insert. Also, there is no grease fitting on the ball joint so re-greasing will be difficult as you will have to disconnect the knuckle from the ball joint, lift the rubber and apply the grease by hand (this can be done with any ball joint so nothing special). Please note that I have not installed it yet and this review reflects only my first impressions. I will update after installation and drive a little. At the moment they are a product with only three stars.