I'm trying to remove the steering column and I'm not sure exactly how to do it. It has a notched out piece that does not allow me to push it through the back of the dash (pic 1). To remove it do I have to take apart the whole helm just to remove the shaft? I first tried to just remove the nut in pic 2 but that didn't work. I stopped there because I didn't want to screw anything up. It's a teleflex system. Thanks!