Lower control arm bushings*%#@#

My dad and I have already started chiseling out the outer shell on my LCA bushing. Can it be done without messing up the control arm? We scratched up a few places and put a tiny nick in one part near the top of the sleeve in the LCA but got the shell chiseled almost halfway down. Will it come out if we chisel it all the way down, then bend it inward and pull it out? I'm thinking that'll be the only way to get it out by now.