you have to undo the teater control knobs (screws underneath) also undo the knobs off the wipers and light switches as well as remove the screws. Then you need to undo you speedo cable and theres a big round plug that attaches to the back of your instrument cluster, and any other wires attached to it. Then there should be 1 or 2 screws that screw down brackets coming off the tacho or speedo. I can't remember which ones.

But yeah thats pretty much how you do it.

Cheers
Damo