You could try this. It's generally a blind hole, so you can't drive it out with a punch from the back side. Pump some grease into the center to fill the cavity behind the bushing/bearing. Find a punch/rod that matches the hole size closely, then drive it thru the hole into the grease. That should cause enough hydrolic pressure to push the bushing out. you may have to add grease to fully remove it.
Steve
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