BluThunder99:
You have to be careful not to yank the thing off because the OD switch wires (a pair) are quite fine and can be snapped.
************Be carefull like he said!!!!! Because I broke my wires trying to get the switch out of the holder not when taking the knob off.... Found that you can not solder the wires because the car knows the resistance of the wires if not right and goes in and out of overdrive all by itself. I had to install a new switch