on my discovery 2, the dash board lights have died, but only the bulb behind the speedometer, not the one behind the tachometer. is it a hard fix or is it relatively easy fix or is it something that should be professionally done. the working bulb behind the tachometer faintly lights up the speedometer but not enough to clearly see at night.

 

This is a good reference video to use. The video shows a RHD truck, but the removal steps are similar.

https://www.youtube.com/watch?v=HuZttjhheU4

Also be careful to GENTLY slide out the speedo/tach cover. There are tabs per the circled in the pic that are prone to break. The pic below shows the location of these plastic tabs. This pic here are missing the tabs. Most pics found on Ebay were selling their covers with broken tabs. Sorry I could not find one with the tabs still showing.

 

cheers for the help, do you know any reputable sources for replacement bulbs? ive spotted a few but if theres a better deal then i would love to know.