Steering Wheel Removal

[troop_storm]

what size allen wrench is needed to remove the four horn contact switch allen bolts when taking the steering wheel off of a 2001 mustang? And this would be coming off of a junk mustang so do I need a steering wheel puller, or can I just pound it off?

 

[94GTCoupe]

Not sure about the allen size.

A puller would be the easiest way, but I've banged off the wheel by hand a few times