This is how I did it a few weeks ago when changing the front struts:
- Remove all components from steering knuckle assy - tie-rod, sway bar links, brake rotor, etc.
- Loosen struts.
- Use a gear puller to pop out the axle shaft from hub.
- Have helper stand on the lower control arm.
- Carefully pull knuckle outward, using caution to not pull the axle assy also (you don't want to hyper-extend the inner CV joint).
Should pop right out and off the ball joint stem. It takes a little muscle though.
To install, the easiest way (I've done it several times already) to get everyhting back is the reverse of above. Especially important is to get the knuckle back onto the ball joint stem (it will at first be quite "cocked" in the knuckle hole) then PUSH the knuckle INWARD. This should snap everything into place.
It worked for me.