This;G-Stock series 1963-67 Corvette gauge cluster features a 4 5/8" Speedometer and tach, and 2 1/8" fuel (0-90 ohm), temp, volt, and oil pressure gauges with Stainless Low Step bezels and flat glass lenses. This package is designed to operate with any original equipment or modern engine and transmission combination or ECU. The gauges come mounted in a precision machined adapter panel that bolts directly to the original* dash bezel for easy installation. The panel is designed to use the original warning and indicator light locations and includes an additional warning light in place of the trip odometer. It arrives pre-wired together and includes a;wiring harness constructed of automotive grade TXL wire, machine-crimped terminals, tech-flex sleeving, and Molex main connectors. Also included are;standard GM sending units and it is equipped with our ZST™.;It works directly with ECM or VSS signals so no additional control box is needed.