first remove steering wheel cowling. 3 screws underneath, and 1 either side of the steering wheel.(turn the whel both left, and right to get these, they will prob hav plastic caps covering the heads)
then remove the speedo surround, 1 screw at the top centre (above the milage reset pin) and a screw either side of the steering wheel.
then screw either side of the speedo body, and thats it.
dont have to take the whole dash out just to change the bulbs behind the clocks. mine were electric and not cable so was a bit easier and you can get them out without removing the steering wheel (mine was basic ls spec no airbag)
be careful if you get them from ebay, i got some and they barely lit the display up i think the member "evil" sells them on here, might be wrong though