If you mean the original "tumbler", yes, I turned to the #2 or accessory position, I think they call it, and inserted the wire to release the security collar. The tumbler came out, just as it should, using that sequence (norman tumbler removal). I never removed the ignition switch/steering lock ass'y, although I have a new one ready to go when "it's time".
That's why I don't understand why the new tumbler seems "stuck in place". Did not install the locking collar, so wouldn't the tumbler simply go in and out?
Also, without the locking security collar, the entire switch/tumbler ass'y can be removed as a unit, correct?