I bought one last summer, so far its not bad, the adjustment thread is backed WAY out, longer than the factory one. It came packed with grease. Mine has a little play, I want to see if I can adjust it out, but its way better than the box it replaced. Just haven't had time to try to adjust it.

The casting looks the same as the factory box, so I suspect they bought the molds from Mopar Performance or someone similar.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street