I replaced the OEM plastic bushes with phosphur/bronze items on my 750F2, the wifes 550F2, a friend's 400F2 and a friends CBX1000Z with no trouble at all. I used a hacksaw to cut through the plastic ones, then pressed in the new ones after cleaning up the swing arm holes and zerk fitting. Just make sure that any shims inside the end caps go back in the same side as they come out.