If you drive your hot rod, even once in a while, then you depend on all of your gauges to be reliable and accurate. Just a small percentage of miscalibration can result in engine damage or failure, ...

Speedometer-gear calibration and selection should be an integral part of any changes to your Mustang's chassis or driveline. Changes to wheel and tire size alter the speedometer reading because the ...

You might recognize this Silverado 1500 from a Fantastic Four article in 2007. This truck was our first GMT-900 to go under the knife, and we really loved the look we got from the Pro Comp lift, ...

Like other speedometers, the Sun Electric is factory-calibrated for normal passenger-car use. Unit features indirect lighting for easy reading. Late in '75 Sun expects to have a mechanical-drive ...