Both the speedo and odometer don't work. The tach, fuel consumption guage and all else on the cluster work just fine. I'm thinking that if it was the sensor at the differential I wouldn't get the tach reading. I took the cluster apart - there are 2 NiCads on the speedo side. Could this be it? Or capacitors maybe.

The old beast is pristine in and out - runs perfectly. It did sit in a barn for 2 years before it was given to me.

Thanks for helping.

Larry