take your old shift knob off,then first u unscrew the screws for the arm rest and the center console, then take it out and take your old shift boot off, and then put ur new 1 on and make sure its on right, then just put it back together, there is prolly a diy somewhere but i donno, but its pretty simple.
ps. what kind of shift knob did u get, and get some pics when your done