I replaced all the bulbs (part# 194 as indicated by Flyingjackal) in the instrument cluster and they are replaced from behind the cluster (as phantomsmack said). I have attached a schematic and a pic (courtesy Autozone) to explain how I did it. Just be careful not to break anything; you know, some panels are held in place with fasteners (no screws) and require to be pulled out...gently!
