[shorod]

I'd suggest you start by lubricating the speedometer cable, but to do that you will want to pull the instrument cluster as well.

I don't remember any tricks to pulling the instrument cluster. I think it was simply a matter of removing a couple of screws holding the trim panel around the cluster, then removing 6 or 8 screws holding the cluster in. Pull the cluster out a few inches and disconnect the wiring connector and the speedo cable.

The speedometer cable will then pull out of the cable sheath. Keep a rag handy as the cable is long and should have some amount of grease on it. While pulling the cable, look for wear and broken strands.

-Rod