The part that can be brutal is removing the outer shell, which remains in the control arm. Just press it out? Sorry, there's nothing to press against. The service-manual procedure is to split it along one side with a chisel, collapse it, and muscle it out. Take it from us, it's not easy to do and will almost always result in scars, both in the bushing bores and on your hands. What's the washer for? Glad you asked.