Collapsed steering shaft? Help!

i have a 440 in my barracuda. i have absolutely no room to work with. i tried doing what i could for today. the junkyard next to my house there is a 69 valiant and a 73 scamp I'm going to try and disassemble those tomorrow so i can get the feel for it before i take mine apart - practice if you may.

from that diagram which is the plastic sheer pin? that broke?