'98 Ford Ranger Speedometer issues
 

Hi there.

My pick up came without the tachometer. I bought one (used) for it and everything works ok except the speedometer.

I found a test with a AA battery and confirmed the speedometer bought behaves similar the the original one (both read 70 MPH with the 1.6V of the AA battery).

Recommendations as of how to make my new cluster to work nicely will be highly valued.

Thanks - MMdT