There are two nuts, one on each end of instrument panel, half way up. if you reach back there you should be able to feel the bolt theads and nut it is a 11/32 or 9mm. nut. Once it is out you can see how it comes apart. Just a note the temp gauge tubing is filled with ether so don't cut that tubing. Disconnect it from the engine or unscrew the gauge from the cluster. You will see once you get there. Ray