I take it I`m good to alter the diametre size to compensate the speedo?

When you change the axle ratio what exactly happens?

and when you change the tire/diameter size is it only the speedo that changes?

Just wondering if , when I change the tyre diametre size anything happens in regards to the odometer or axle or is it just the speedo that changes.

I ask because I ...

just concerned about the drive train.

When modifying settings to improve the firmness and holding power of the transmission, we sort of have to undo what the manufacturers do as they`re under the misguided concept that stock settings mean cars should shift as smooth as silk. If they didnt they`d ...

F**k it. I`ve bought them.

4.10s were installed in my 2003GT. On my tuner my setting was 4.09 .Thats the right setting and my car runs perfect. Bear in mind if you`ve changed the tyre/wheel diameter then you`ll have to adjust your speedo using the `modifying parameters` part of the tune. If ou haven`t changed wheel/tyre size ...

Planning to put an Offroad H pipe on my 2003 Mustang GT.

Do I need MIL eliminators or can I do use the 7146 Tuner to achieve the same result?

What would be the best option?

thanks guys.

Brian

Thank you very much Vaz. What I wanted to know.

Good day guys.

Instead of asking on general car forums i figured it best to ask the guys that know.
I have a 2003 Mustang GT auto. In the very near future I will be having new 4.10 gears installed in my rear axle. I understand I`ll need to change the diff ratio settings and speedometer settings ...