[cobrajeff]

Ron -

Nice looking Cyclone. My first car was a 1965 Comet Caliente - I had it all decked out with Shelby 10-spokes, side pipes, dual quads, and a Cyclone fiberglass hood.

The Constant Voltage Regulator, also sometimes referred to as the IVR (Instrument Voltage Regulator), is about 1 inch by 1/2 inch rectangle. It is mounted to the printed circuit board on the back of the cluster - and I think DV was right, between the speedo and amp guage. I believe you will have to pull the cluster to service it (which means you'll have to disconnect the speedo and guages).

This part would be the same as one on a 1965-66 Mustang, which will probably be easier to locate than Comet parts. The clusters are the same, only the graphics on the guages are different.

regards,

Jeff