Bushing on shaft under mechanical advance?

It has a 17 on that part was going to keep the rod just get rid of the housing. Figure I could get it welded up and the Mr. Gasket spring kit on it so the advance come in when I want it.Have to see if the other dizzy in my 75 part parts(someone sawed in half with saws all) dart is good.See what you were talking about on the shaft riding on top of the brass bushing in the housing. Thanks for your help 67 dart 273. !!