Speedhut A-369 Mechanical Drive Converter w/ GM Clip-on

Revive your original cable-driven mechanical speedometer in GM vehicles with modern accuracy using this specialized SPEEDBOX from Speedhut. It converts GPS satellite signals or Vehicle Speed Sensor (VSS) inputs into precise mechanical cable rotation-no transmission mods, no calibration required for GPS mode, and no need to replace your stock gauge. Includes a GM-specific clip-on cable for easy hookup, waterproof GPS antenna, compact sealed housing for simple mounting, and automatic calibration. Made in the USA-perfect for GM classics, muscle cars, hot rods, restorations, swaps, or any build wanting to retain factory mechanical looks while gaining GPS precision and reliability.

• Modern Signal Conversion - Accepts GPS (fast satellite lock, no subscription) or VSS inputs and drives your original mechanical speedo cable with pinpoint accuracy.
• GM Clip-on Cable Included - Easy clip-on design fits common GM speedometer inputs for straightforward, no-thread installation and compatibility.
• Zero Calibration Needed for GPS - Auto-calibrates to your setup; works worldwide with the included waterproof antenna-no gear ratios or tire size programming required.
• Compact and Rugged Design - Sealed, easy-to-mount housing fits tight dashes; built tough for street, off-road, or long-haul durability on classic GM applications.
• Lifetime Warranty Confidence - Backed by Speedhut's lifetime electronics warranty for lasting performance and total peace of mind on your build.