Yep, thanks, the bolts would never rotate out as they are splined, or serrated. Once they were knocked out, replacing the bearing and top mount was fairly easy. Reinstall took 15 minutes.
The top pieces are plastic and I could see where the old bearing was compressed, or flattened is spots because the plastic housing does not hold up to the weight placed on it. Looks like that part should be metal to last. I will probably have to replace it again at some point.