Ignition switch puzzle

I am having truble with such a simple interior piece, and its giving me headaches!

Napa sells aftermarket ingition switches for chrysler cars and they do have the one specified for my 67 valiant which were the ones on the dash not the column. The car had the ignition lock broken when i bought it and have to turn the car on with a huge flat screw driver...these switches have three outer fins that run horizontally on the neck of the swtich...but i am not sure what is wrong but the bezel thats on the dash for this switch has only one opening for one fin thing....not three...so the iginition neck wont go through...am i missing a piece? some type of bracket that held the switch and the threaded part of the switch is the only thing thats supposed to pop out of the bezel? not a huge problem but at the same time it is because someone could easily turnon my car if i dont fix this lol:-&

As you can see in the pictures...my switch is just like that one but another thing thats puzzling me is that my connection for the switch has only 5 inputs and these swtiches im finding used or unused have 6...huh huh huh!?

and the bezel picture is similar to mine but behind of mine i have no bracket thing...hmmm any valiant guys know what im missing?

68IgnSwitch2.jpg

dac3_1.jpg