Ohhh yes, hardest part of the job.
Best drill out the rubber and remove everything first, then youl need either a bloody good chisel I used a elect heavy duty one and smashed it out in the end,
Or use a hacksaw and inverting the blade to cut a slice of the cage then crush it inwards to make it easier to remove from the axle.
The polybush above after we cleaned the axle went it quite easy without any speacial tools just a rubber mallet
