Vibration is gone, and URO discs are back in their boxes waiting for me to contact rockauto. BTW, the rear disc had the same problem, just not as bad.

I will officially say, I do NOT recommend these. I will be looking for the brand all the MB guys seem to be using. Can't remember what it is, but it starts with an L.

Also, I will say (aside from the bad parts, obviously) this job was much easier than I anticipated, and a lift is by no means necessary. A jack isn't even necessary for the rear disc.