I have a 51 chevy, and my on/off switch for the starter in the cab has a short in it. I bought a new key cylinder from Chevy Duty. How does the the old cylinder come out, and the new one go in? The old one has 1 tiny hole in it, and the new one has two tiny holes. Is there a tool to pull the old one out, etc? THANKS!

Bernard Laiben
1951 3100 Chevy Deluxe Pick-up (original with 73,000 miles on a "straight Six" 216)