You can borrow from the parts stores usually, a tool called a 'GM lockplate tool'. It compresses that center ring so you can get the circlip out. If you are strong, you can do it with your fingers and have someone else pop the clip out for you. You push down on it.
You will find some loose bolts in there I believe. There are kits for the hinge too I think. It is a Saginaw column, same as lots of GM's like full sized vans, Camaros, etc...
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10. Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com
(10 new albums added Sept 16/10)