You will need to pull the instrument cluster, remove circuit board and then pull the gauges. I think there are 6 or 8 screws holding the cluster to the dash frame. The 2 on bottom may be the hardest to get at. The ones on top you should be able to remove with just the dash pad removed. I just happen to be converting my SS idiot light cluster to gauges, but luckly for me I have the entire dash frame out which makes the access easier. Good Luck!