Shifter Knob Removal Situation

It is somewhat common for the little threaded stud on the end of the cable to rust enough to seize up in the button. The novice will twist on the knob until the cable breaks. If you can lift the console enough to take the shifter apart from the bottom, you can hold the stud at lower end of the cable with vise grips and screw the paw off of it. Cable with button comes out the top.
the aftermarket does not produce this shifter cable. A length of nylon all thread will replace it.