Ignition switch 76 Blazer

I think I may have a faulty ignition switch in my 76 blazer. How the heck do I get the dang thing out of the column? I removed the steering wheel and blinker guts above the housing, but I don't see any way to release the switch short of busting something. In other vehicles I've seen a release port that is activated by inserting something with very small diameter, but i can't find anything like that on this column. Am I blind, dumb or both?
Appreciate any help any one can give.