Steering column installation help!

[jmedero]

Hey guys I removed my column 3 years ago and now it's time to reinstall. I've tried to find a specific pic or instruction and can't seem to find it. I hope one of you guys can help out.
On top of the column there are 3 notches or slats that fit into a "tooth" if you will. Which one of the 3 "notches" does that "tooth" go into? The one closest to the wheel or the one closest to the firewall?
Any help is greatly appreciated.

1968 GMC BBC truck. Just invade that makes any diff.