I have found it is a good idea to replace these on the lever that sticks out of the lower steering column where the rod from the transmission connects. They wear out and get loose and then fall out with age. Makes it hard to get the back up lights in sync with the shifter when it is in reverse.
NOTE: It does not matter if your car is floor shifter or a column shifter, this bushing is still in use every time you move the shifter and it can make it hard to put the shifter into park as it can bind the linkage if missing or out of adjustment as well as get the back up lights to come on at the right time.
Shifter Linkage Bushing Grommet Chevy Olds Buick Pontiac For 1394293 22503153
I bought one recently for the T Type off EBay
https://www.ebay.com/itm/284033672332Seller named Pick Our NOS or pickournos