This is a brand new Voltmeter, or Ammeter, for all 1970-72 Chevelle & Monte Carlo models with round gauged dash. All SS cars had a round dash but many of them had only lights, but if you ordered U14 Tach & Gauge you would get an ammeter instead of a light. This is the 1971-2 Version as the 1970 had light green lettering instead of white like this one. This did service the 1970 as the green lettered one was discontinued. It would work in 1970's, just be the wrong color. It is prand new and has never been installed or used. Chevrolet & Delco part number is #6473843.