Removing more then just the steering column

Hello,

I have a 1974 Plymouth Duster that I believe needs an Ignition switch replacement, I have gotten to this point (refer to picture) and am stuck. I have a Haynes Repair manual but it does not have the information thoroughly laid out as I need it.

I need to know how to get to the Ignition Switch and what I need to get past this point?


1st update: I removed the C ring but am still stuck because I know there is a certain sequence to this.