Have a look at this section in the Technical Manual:
https://www.sl113.org/wiki/TransmissionClutch/ShifterThere's one bushing that has to be replaced from under the car- where the shift gate connects to the shift linkage.
Not really difficult to do, just slightly awkward because of its location under the car.
You need to soak this bushing in hot water to soften it, I also used some liquid soap to help it slide into place.
There's also this tool for $28- which makes it much easier:
https://www.ebay.com/itm/TRANSMISSION-LINKAGE-BUSHING-BUSHING-INSTALLER-For-Mercedes-Ford/261302466500 The rest are replaced by removing the cover of the auto shifter inside the car.
Follow the instructions in the Technical Manual, it's straightforward.
I recommend doing them all.
Here's what I found when I opened up the shifter gate, see pics below.
Best
Mike