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Replacing Shift Knob and Boot

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I recently bought an aluminum look shift knob and boot to replace the stock knob in my 2003 S. A simple replacement, but sometimes things that seem so simple to accomplish are hard to do. I am almost ashamed to ask for help on this one.

Does anyone know if the old stock shift knob is merely a tight press fit to the shifter shaft, or is there a setscrew somewhere that is holding it to the shaft? I don't think I can get the old knob off the shaft without exerting substantial force. I cannot see any setscrew holding it tight to the shaft but before I force it I want to make sure it is not screwed down. I have looked at various diagrams and line drawings of the shifter and it seems like there is nothing holding the knob to the shaft except friction.

At first glance it looks like it is a press fit, but I noticed that my new knob has a setscrew beneath the knob under the leather boot that holds it tight to the shaft. It makes me wonder if the old knob might have a setscrew also, but if it does I can't seem to find it.

I am considering clamping vise grip pliers to the shaft just below the body of the shift knob, and using a big wideblade screwdriver to wedge the knob upward to break its hold on the shaft. I am sure that those of you who have installed the B&M short shifter have removed the shift knob. Anyone have any tips about what should be a rather simple task?

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