There are countless questions and threads on the board about speedometer calibration and not being able to hook up the speedometer cable because of frame clearance issues and recently what to do when installing a T5 without a mechanical drive gear to get a speedometer up and running. Well a there is now a solution that lets you solve that problem and keep your original equipment mechanical speedometer and takes care of speedometer calibration in one shot. Classic Speed is a GPS interface that tracks 22 satellites on 66 channels and signals a motor driven drive unit to run your original cable driven speedometer. It was developed by Brian and Pam Induni and has been thoroughly tested. The cost is $275.00 plus shipping ($10.00 to $14.00 USPS priority mail). Lets be honest while the current GPS and electric speedometers look nice they just don't fit in to the traditional build appearance wise. Now you can keep that original stock or traditional looking speedometer you searched the swap meets and internet to find. My shop Speedometer Service www.speedoservice.com is now a partner shop for Classic Automotive Innovations "Classic Speed" If satellite triangulation is lost due to a tunnel Classic Speed uses an algorithm that continues to drive the speedometer based on average speed of the last few seconds until satellite signal is recovered. You can check out installation instructions on my shops website. Classic Speed will not cure the calibration problems due to a worn speedometer, the speedometer must be in good working order. Because of short price margin I'm sorry that the 10% alliance members discount dose not apply to Classic Speed .