Push the CV axle in a lttle bit, then climb under the center of the car with a breaker bar (or any kind of bar that has a flat edge on both sides) and a sledge. Rest one edge of the bar on the cv axle so when you hit it, it knocks the cv axle out of the trans. About 2 hits should do it.

Hopefully you've already gotten it out by now, but if not, try this.