On mine, the bushing had worked its way over to one side all by itself, so that I had metal-on-metal. It came out with a light tap with a piece of wood.
I put in the split poly bushing (got it at fcp groton). No press needed, easy job. These are nice because the support arm is "captured"; the bushing can't move as with the OEM. Some claim that the poly is a little more harsh, but in my case eliminating the metal contact was a huge improvement.