<VV> Ignition key cylinder installation

[Paul Fox]

Group,
         Despite having done several of these over the years,I've been unable to reinstall the ignition key lock cylinder in my 69. It came out with the paper clip just fine. I looked at the 69 factory supplement and saw nothing really different even though the key is a shaped different than the older lates. Any ideas? What am I missing?
             Thanks, Paul Fox