"Les Benn" > wrote in message
...
> There should be a speedometer calibration shop in your area. Probably used
> by the local police too. I was told last time I had an issue with
> calibration is to drive a measured 10 mile distance then note what your
> speedo reads,

This method requires using your ODOMETER and is limited to the smallest unit
measured by the odometer 1/10th of a mile degree of accuracy, combined with
the operators level of accuracy. Basically ok as a ballpark indicator...

It is much easier to look up this already "know information" or go to
someone who already knows it.

Is it a simple computer recalibration? Or are you going to pull your
transmission and change speedometer gears? Or are you forced to choose to
live with the discrepancy?


> using the difference they can put in the needed pieces parts to make it
> read accurately.
>
> "mustangGT_00" > wrote in message
> lkaboutautos.com...
>> Good day guys,
>> I got 4.10 gears installed in my 00 GT. The speed odometer is not reading
>> the actual speed. I know SpeedCal is the needed thing in here, but I'm
>> just too busy with school and work. I talked to some people and it seems
>> like I need an expert to talk to. Can any one help me with tips about
>> this
>> part (function, price, installation, etc..). Your help is appreciated.
>> I Mak
>>
>
>