Okay, heres what you do!
You will see a little cylinder at the bottom of your shifter knob. It's black, it goes from the (PRND21) housing all the way up to the base of the shifter. It's round, obiously. Pull DOWN twards the floor of the car on the black piece. Pull REALLLLLLLLY hard until it pushes down. You will see two Torox screws. Remove each. I believe the Torox screw driver you need is a 20. DO NOT try to take them off with a phillips or anything else. I tried and it DOESNT work. You will just mess up the screws!
After your remove the screws, put your finger OVER the button that you push to shift. If you dont it will fly off. There is a spring inside. You want to make sure you dont loose anything.
If you are interested I have a shifter knob for sale that already has the O/D off button installed. All you need to do is wire it up instead of having to put the button nearby somewhere. It's how they came stock when they had the O/D off button.
E-mail me at
[email protected] if you have any other questions or if you want the knob I have for sale.
-Kyle