Remember calculating which speedo drive gear would make your speedometer and odometer read accurately after a gear and tire size change? if you own a new JK wrangler, those days are gone. Now the ...

The days of counting teeth in speedometer drives to correct for gear ratio changes and tire size are long gone. The electronic age has arrived and has made dialing in our Jeep JK Wranglers much easier ...

You may be driving faster, or slower, than you think you are. Speedometer inaccuracies happen, and can be partially to blame for that seemingly bogus speeding ticket. Dan Edmunds, an automotive ...