Hi,

With the illustration provided by “planetman“ and my memory there shouldn’t be a problem with removing the set screw that locks the pin in place.
I do not believe that there is a need for any type of thread locker needed as the shifter rod is a floating member not subjected to vibration or forces of torque.
The diameter of the set screw is about as big as the Allen wrench of which is a beauty of a socket Allen design.
The pin has a groove that keeps the pin around the set screw.
That item has always come out easily for me but I do not live with salt laden highways either.
This should be an easy job, except if, for being under the transmission and doing seeing and feeling thing. 🥴

Yes, the plastic bushings need to have both flanges to to support the shifter rod faces within the yoke. The term “Clevis” and “Shackles” are chain and lifting device terminologies.
The pin is locked and the flanges do the holding or alignment of the rod.
There are no retainer clips used as the bushing flanges are doing the holding laterally.

The rod joint applies a twisting and pushing rotation to side over the gate plate with the tangs on the shifter forks. The gate spring constantly applies a force to center up the shifter in the neutral position.
Excessive play “miss guides” the user’s hand to know where it is moving to and it slowly get worse over time.


Phil