Automatic trans column shift shaft play

I have recently had a problem shifting from 1st to drive and drive to 1st with my automatic transmission on my 1963 220 SEb cabriolet 111 chassis due to selector binding. It can be done but it is not a smooth operation. Visual inspection reveals that there is considerable play/wobble at the selector shaft base after it exits the firewall. I am attaching a picture from a parts manual that looks as if there are some bushing in that area. If they are in fact replaceable bushings, has anyone had the opportunity to attempt replacing these items? Do you have to remove the entire steering column assembly? Does it require any special MBZ tools?