Disconnect the negative battery cable. Remove the headlight switch knob, escutcheon, and instrument trim plate. Take out the cluster lens and gauge, then remove the left-hand panel trim cover. Detach the cluster carrier and disconnect the speedometer cable. Remove the steering column trim, disconnect the shift indicator, and lower the steering column. Disconnect the speedometer cable and bulbs, then shift the gear selector to low gear. Extract the instrument cluster, unscrewing the Speed Sensor optic head. Disconnect the harness and ground strap, then remove the cluster assembly. Unscrew the trip set lever knob, remove the clear lens, black filler, and shift indicator components. Extract the circuit board assembly, noting gasket positions. Finally, hold the speedometer frame and remove screws to take out the mechanical speedometer. Installation is in reverse.