remove the screws at the top and bottom of the trim ring
around the gauges, and I think you might have to take the
cover off of the steering column.
Remove the 4 screws that hold the instrument cluster into the dash,
and undo the wires and the speedo drive cable, unless it's electronic
and a wire.
The bulbs are on the back of the cluster, they have a holder that twists
to remove, replace the burned bulbs with the right new bulb, and reverse
steps to put it all back together
Wild