And the adventure continues.
The old cable end would not come off without destroying it. I sawed it apart with a cut off wheel on my Dremel type tool.
There is a black plastic part of the cable end (not part of what gets replaced) that gets distorted with age and it would not slide out of the old cable end. It would not slide into the new cable end either. I found the high spot and dressed it up with a grinding wheel on the Dremel type tool.
After that I decided not to touch the neutral gate cable end until I absolutely had to.
My first instinct was to just remove the rubber bushing from the new cable end and transfer it to the old cable end while it was still on the car. It sure would have saved a lot of time. I should have listened to myself.