If you can turn yourself upside down under the dash and prop a troubleshooting light so it shines up there, you can remove the four nuts that hold the instrument cluster to the dash. Then get up, sit in the front seat and pull it out carefully and lay a towel in between the dash and the cluster while holding it, pull off the two wiring hooks in the back to relieve the tension on the wire harness, then you can easily remove the wires from the gauges with a 3/8" nutdriver. Then pop all your light sockets out of the back of the cluster and unscrew the speedo cable from the back, all while sitting in the front seat. I have done it this way a few times