Lower control arm shaft bushing, 65 Barracuda

By now (since these type of control arms have been in use for ages) there must be an easier way to remove the "outer shell" from the lower control arm, shaft bushing. I'm rebuilding my lower control arms and I have pressed out the shafts and the rubber portion of the old bushing. I removed the inner shell from the shaft by splitting the shell with my Dremel. (Not covered in the service manual) The service manual says to remove the outer shell, which is still in control arm (probably for 54 years) "by cutting it with a chisel. Use care not to cut into control arm."
There must be an easier way?
Norm