Speedometer Cable

The speedometer cable (CA-3001) is a critical mechanical linkage designed to transmit engine speed data from your vehicle's transmission or engine to the dashboard speedometer. Built for General Motors applications, this cable represents the mechanical heart of analog speed measurement—a proven, direct-drive solution that eliminates the electronic noise and sensor complexity found in modern systems. If you're restoring a classic GM vehicle, upgrading a hot rod, or maintaining an older truck, a quality speedometer cable is essential for accurate speed indication and odometer function.

This speedometer cable operates on a time-tested helical drive shaft principle: a flexible steel core rotates inside a protective outer housing, turning a magnet inside the speedometer gauge. The mechanical design resists electronic interference, making it ideal for vehicles with high-output ignition systems or engine modifications that generate significant EMI. Weighing just 0.75 lbs and measuring 12.1 inches in effective length, the CA-3001 delivers a compact, lightweight solution that integrates seamlessly into OEM dashboard assemblies. The cable's sealed construction protects the internal mechanism from moisture and road contaminants, ensuring smooth operation across varying climates and driving conditions.

Mechanics and enthusiasts choose this speedometer cable for restoration projects, engine swaps, and reliability-focused builds where electronic sensors may fail. Installation requires routing the cable from the transmission output or engine-mounted drive to the back of the speedometer gauge—a straightforward process on most GM platforms from the 1960s through 1980s. Verify your specific GM model year and transmission type before ordering, as cable length and drive-gear configurations vary across generations. This OEM-specification replacement restores accurate speed and mileage tracking without modification to your existing dashboard or gauge cluster.