TaDaaaaaa
Did mine many moons ago with the flickery dash.... easy enough job so long as you take your time and dont go like a bull in a china shop getting the panels of, this is what I remember....
2001 TERRANO 2.7TDI like this...
Ok, you will need to remove the lower part of the dash... 5 screws here where the arrows are... then unplug the mirrors and light 'thingy' from behind and you should be able to remove it.... (on the pic below you can see the screw holes to help you find them)
With the lower cover removed you then have another 5 screws to remove to get to the speedo... 3 screws above the speedo, and one either side which were hidden by the lower cover.... again you will need to fiddle around behind to unplug the alarm, internal locking button etc
With all the screws out and plugs disconnected you should be able to lift this out too.... leaving you with easy access to the speedo.
Speedo is held in with 4 screws - two at the top, and one each bottom corner, undo these - gently move the speedo forwards and you will see the plug (shown in the box)
With mine I think I basically 'wiggled' the plug into the back of the speedo about until the display showed as it should, then lashed it inplace with plenty of duck tape to hold it there!!! :augie
Worked ok afterwards though! :thumbs
To reassemble just do everything in reverse!!!! :naughty
DISCLAIMER - if you bugger it up dont blame me! I'm trying to write this from memory of a job I did 5 yrs ago! :doh
If any clever peeps out there wana make this into a download feel free!