what part of the ignition switch are you talking about? there are two parts to it, the mechanical part (which releases the steering wheel lock) and the rear portion which is the electrical part.........
i am going to assume you are talking about the electrical part.....you don't need to remove your steering wheel (i don't believe)......i just removed mine off the donor car that my straight 6 swap is coming out of........there is a lower trim piece that is held in by two screws, remove the screws and the trim. then you will see the switch.....it just pulls off (you will see that it clips onto the column via two tabs on it).....you may need to remove your knee bolster to run down the plug for it....but as my knee bolster was already removed i don't know if that sucker is hiding behind it or not