Our 1964-67 GTO direct-fit package is an all-electric cluster featuring a speedometer and tachometer with a set of two dual gauges reading fuel/oil and temp/volts. It has green LED turn signal indicator(s), a blue high beam indicator in the dash housing. Mounting hardware and a wiring harness is included to install with the original bezel, diffuser, and lens and setup is a breeze with push-button speedometer calibration and built-in ECM signal filter switch. All other necessary sending units are included with a Classic Instruments GM sending unit kit, part no. SNGMNF, no fuel sending unit.;Fuel gauge is calibrated to 0-90 ohm. Save space with Classic Instruments’ Zeus Speedometer Technology built-in, meaning the cluster requires no external control boxes and works directly with ECM or VSS signals. This package is available in 7 different design series plus an OE style.