With the back plate off(since you already have taken a hammer to the sleeve LOL) you can take a flat head screwdriver and with using the bottom of the case as leverage try and pry the sleeve up. I have done this before when my rod's have snapped, the sleeve should stick out far enough on the bottom end to do this. Just enough that the sleeve will push up and the lip of the sleeve with then be able to be grabbed by a vice grips and be able to be pulled out.

Hope it works for ya,