So the speedo and odo are dead. I pull the cluster, and discover that the speedo cable wasn't even plugged in

.
Put that in, still no speedo. Take everything out, and drive around with my fingers on the speedo cable. No movement. I assume that the cable was broken.
But it wasn't. I pulled out the old cable today, and spinning one end propels the other. Hmm.
So apparently something in the transmission is toast? I seem to recall seeing a thread about that before...
In unrelated news I have a
brand new speedo cable for sale.