The 1964-66 Chevy truck direct-fit clusters feature a speedometer tachometer fuel oil temperature volt gauges and a 12V quartz clock decked out in one of four color schemes: black tan white or gray. Choose black for a near-stock appearance or select one of the other color options to suit your project! The all-electric cluster with easy snap-in wiring harness arrives ready to install directly into the stock dash of 1964-66 trucks; no cutting or alterations necessary. Perhaps the best feature: the cluster includes Classic Instruments Zeus Speedometer Technology built right in which means no external control boxes are needed