1)I followed instructions that advised me to disconnect the speedometer cable from the transmission, 10mm bolt on the left side of the tranny near the drive shaft exit
2)Remove the steering wheel, the soft pad just pops off with your hands, then there is a 22mm nut holding the steering wheel onto the shaft. Lay a clean towel on the steering column to protect the wood and sheeting column.
3)Your instrument panel may or may not have a large knurled nut, you will have to reach behind the instrument panel to find it. I had to remove the interior panels under the steering wheel to check for this nut. It ended up NOT being there! After removing the steering wheel just grab the instrument cluster by the outer edges, my very easily began to move and it was clear that no nut was holding it on. Do that check first before hunting for that knurled nut.
4)You pull out the cluster as far as it will go until you feel resistance, be gentle with this, then you can begin to disconnect the oil line, speedo cable and electric plug
5)Remove the electrical plug, it just pops off, no latches or anything. You will see a large ribbed nut holding the speed cable to the back of the speedometer, remove that nut, then with a 10mm and 12mm wrench remove the oil line (if you start the car with the oil line removed you have a fountain of oil spraying into the car)
6)The last connection is the temp sensor and I have read repeated warning to not try and remove this and be gentle with it. With everything else disconnected you can now rotate and remove instrument cluster to the position shown in my picture above. You can see the screws holding the speedometer in place on the outside, just undo those. I also undid the bolts holding that back bar (you will know it when you see it).
7)The speedometer will then lift out and then with a little twisting to remove the entire speedometer assembly. You will see a green wire connected to a lightbulb running over the back of the speedo. Remove the light bulb and the little clips holding the green wire by pinching the plastic plugs from the inside (see green wire in picture in my post) I haven't fixed my odometer yet, I am taking it to Palo Alto Speedometer in Palo Alto, California and am going to have them do the repair. I also changing all the bulbs and potentiometer and will have my quotes for those parts tomorrow.
Palo Alto Speedometer: Repair, Restoration, and Sales of Automobile Gauges