Do you have a msp or a p5 or es,dx,lx? cause if you have the later of the the select few I dont think the es,dx,lx or p5 for that matter will fit the stock shift knob.....I also have a MSP Shifter if you want.
also depending on what short shifter you order the stock MSP shift knob may not fit...IIRC the B&M and the TWM shifters are the same threading for the MSP Shift knob.