Hey guys, I recently had to replace the ignition switch because the guy I bought the car from lost the keys to it and did a number to it in order to get in running. It's a 1968 Lemans. He purchased a new tumbler which seemed to work fine for the original ignition switch despite damages to it. However I am having troubles getting this tumbler to go all the way to the rim with this new ignition switch and I wanted to know if there is a technique to it. I haven't tried muscling it in with tools because I don't want to damage it. Thanks!