It's not a big deal with the tail housing off. (especially if you get the seam in the bushing started first)
I have a chisel I modified when I was in the business that I ground to have a V in the end 90 degrees to the original edge.
When you get ready to take it out note where the oil hole in the bushing is and put the new one in the same way.
I cut the chisel kind of like this.
It's not critical, but just needs to be able to get under the edge of the bushing and lift it.
This tool is actually for cutting bushings, but the tail shaft bushing has a seam you can get under and pop up pretty easy.
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