JEGS 79268 Factory Style Tachometer for 1966 Chevrolet Chevelle and El Camino mounts to the lower right side of the dash and is an exact reproduction of the factory unit. This tachometer is known as the Knee-Knocker Tach due to hitting your knee when you're shifting your 4-speed transmission. A tachometer is one of the most critical details when restoring your dash panel. This tachometer features an all-metal chrome housing with the correct color display and a 0-7,000 RMP reading with a 6,200 RPM Redline. Includes three plug-in wire connectors that attach to the factory wiring harness.