Ignition switch to dashboard interface

[Bowtie001]

OK, I know this should be easy - but is it ever?

I have finally wired my new ignition switch. I put it in the receptacle, and then realized that the two tangs broke off - boo hoo. Oh well, I'll worry about that later. hmm... hmm... how does this thing go in the dash now?

OK. I think I am missing some pieces. It's a 72 GMC if it matters. I have what is pictured here plus the circular hole in the dash with the three equally spaced slots around the circumference. Is there a piece or two I am missing? Does that rubber piece do anything? Does anyone really know what time it is? Does anyone really care?

Thanks in advance.

-Brian