You need to pry between the back of the cv axle and the trans housing, I'm not thinking that a slide hammer would do the trick, if you pull on the cv itself you will just end up pulling the knuckle out of the cv housing and pulling the boot off. just get the pry bar and pry one side, then the other, it took me about three times. It has an inside clip that has to pop out so you'll have to use some elbow grease on it...