Three on the tree repair?
I have done it before on mine when it was my only driver. My opinion is is to replace the tube in it at the same time as the collar. Cost a little more but you don't have to worry about old parts causing wear on new ones. You can even get a diagram of how it fits from one of the sales catalogs like lmc and carpenters. The way I remember is this, and others who have done it chime in because its been a while since I have done it. You take the steering wheel off and out of the way,the collar that holds the shifter and then the tube. When I reworked it this last time I took it all out but you may not have to do that. I think its something that can be done on a Sat afternoon. Other things to check at that time are the cab supports. They can drop down and cause the shifter to not work properly. I could barely shift mine before I started reworking it. the cab supports rusted out and let it drop enought to make it hard to shift. I rebuilt the supports and just took the shifter apart and regreased it when I put it back. worked like a new one. And one last thing to check is the steering doughnut ,the piece fitting from the column to the steering box. If its loose or worn it can get you killed. I wound up in a ditch due to mine once. You can get a rebuild kit for one in most parts stores. I think mine was labeled for a new one or a dodge but I matched it up.
ON my 66 I replaced the collar and the shift tube. Fairly easy just pull the wheel and all parts come out from inside the cab. My only problem was the collar was too tight to fit over the shift tube had to hone it out to fit. Once again it was a case of poorly toleranced parts from overseas. If I had bought from one the better(more expensive) companies I dont think I would have had the problem. I someday will learn that money saved on cheap parts usually costs three times the time spent on labor.