Noisy speedometer - 55 Fairlane

[Jim.UT]

My speedometer makes a rhythmic sound at low speeds...most noticeable below 20 mph. The needle pulsates along with the sound. At speeds > 20 mph the sound gets less noticeable and the needle smooths out.

Is this a lubrication issue or does the speedo need to be rebuilt?

The car spent 30 years sitting in a garage waiting for delivery of a roundtuit that never came. Then another guy bought it and restored it before I bought it.