From '65-'93, Mustang speedometers were cable-driven mechanical instruments that worked on the eddy current principal-a magnet whirling around inside a shell attached to an indicator needle. The ...

I have a '67 fastback with a C4 transmission from a '71 Mustang. I also have a Traction-Lok rear with 3.50 gears. The problem is the speedometer. All of my research indicates the way to calibrate the ...