Here's my $.02. My bushings were so far gone the pin on the shift lever wouldn't interact with the parking switch, which consequently led to my key getting stuck in the ignition.
There are a total of 4 bushings. Two on the tube connected directly to the shift lever, and two below the floorpan after a linkage.
The top two are the ones most discussed here and those made a huge difference. Replacing them eliminated all of the side to side movement and gave the pin good engagement with the park switch.
It's blurry here but you get the idea:
I replaced the lower two for good measure since I was in there. I couldn't get the snap rings off the linkages, which I think would have made it a lot easier.
You can undo all 8 bolts that hold the metal shifter bracket down, then wedge something under it to have a few inches of clearance. It's a paint to get this bolt out but it's possible. The nut is 13mm and the bolt on the other side is 14mm.
Undo the nut, take out the bolt, shove the linkage around until you can put in the new bushings, then reassemble.
This lower set of bushings helped a little with the forward/backward movement in the shifter, and I'm sure it helps some, but it almost doesn't seem like it's worth it.
I wish they were bronze bushings instead of soft plastic. I hope they last awhile in the desert southwest heat.