Model number and brand for the DW would help. That looks like its part of a mounting bracket or something.
Also, make sure to triple check the seals for the sump if it's leaking out the bottom. Is it coming directly out of the pump somewhere or just near it?
I replied to your message but for others sake I'll reply here as well, I think I munched the O ring when I put it back together. I took it apart, still cant find a place to put it and the O ring looked funny. I put it back together real careful like and it's working and not leaking. I believe my problem is solved.
For everyone's ref, pulling this out of the DM's.
>Sounds like the sump o-ring was smashed when you put it back on and I almost feel like whatever the F that little black thing was might have been clogging the drain. I have a feeling its part of the mounting bracket for the sump/motor or something to decrease vibration with how it looks and how it's shaped.
I ran a full load,, it's great. So I think that my first fix a few days ago got the water flowing a lot better than it has been and that then flushed a piece of glass and that black rubber thing into the impeller or the wash pump. Got that all cleaned out. Put it together the second time, being much more careful with the O ring, and it's working great. It even sounds different now. Like it's sprayers are supercharged. And NO leaks!! Thanks for the input!