Read this:
http://tech.bentleypublishers.com/servlet/JiveServlet/download/48-27989-329826-5789/Ignition%20Switch.doc
Taken from this thread:
http://tech.bentleypublishers.com/thread.jspa?forumID=48&threadID=27989&messageID=272485#272485
You mean, I think, ignition switch module, which is the location of the ignition switch.
Remove the ignition switch retaining ring. Pull the ignition switch out. Remove the wiring harness from the back of the ignition switch. Reverse the process to install the new ignition switch.
Begin by removing the retaining ring at the top of your ignition switch. The ignition switch will slide out and you can remove the wiring harness from the end of the ignition switch. Reverse the process to install your new ignition switch.
Attach the wiring harness to the and of your 1986 Chevrolet Caprice ignition switch. Slide the ignition switch into the ignition slot. Tighten the ignition switch with the retaining ring.
The 1992 Plymouth Cold ignition switch is held in place by a retaining ring. Remove the retaining ring at the top of the ignition switch. Pull the ignition switch out. Remove the wiring harness from the ignition switch. Reverse the process to install the new ignition switch.
You can change your 1995 Chevrolet ignition switch by removing the ring at the top of the ignition switch. Slide the ignition switch out and remove the wiring harness. Reverse the process to install the new ignition switch.
Why is gasoline coming out of the ignition switch?
A jet ski for your ignition switch?
Begin by removing the retaining ring at the top of your 1992 Chevy ignition switch. The ignition switch will slide out. Remove the wiring harness from the end of the ignition switch. Reverse the process to install the new ignition switch.
You will need to remove the ignition switch retaining ring in your 2002 Chevy Astro Van. Slide the ignition switch out. Remove the wiring harness from the end of the ignition switch. Reverse the process to install the new ignition switch.
Remove the retaining ring at the top of your 1985 Chevy ignition switch. Slide the ignition switch out and remove the wiring harness. Reverse the process to install the new ignition switch.
How to remove ignition switch