Well I tried this weekend to use the tool and remove the Ignition Lock shield, but It just would not work.. I could not get the Ignition Lock shield to the release...

But I have an idea. I was thinking of using a Dremel tool to cut the Ignition Lock shield. There by letting me have access to the tumbler. Once removing the shield I should be able to remove the tumbler and install the new unit. What do you guys think?

Maybe my problem is the tool I made to unlock the shield... I dont know.