Speedometer and new wheels

[DaemonJ]

I am planning to install some 18x9 wheels up front and 18x10 wheels in the back.

These will have different tire sizes and therefore different tire rotation speeds.

In updating my XCal2, should I use the tire revs from the fronts or the rears?

In other words, is the speedometer based upon the front tires or the rear tires?

 

[bigcat]

rear

 

[DaemonJ]

Thanks bigcat!

Is there anything about Mustangs that you don't know? LOL

 

[bigcat]

Thanks bigcat!

Is there anything about Mustangs that you don't know? LOL

yeah, lots!

i help as i can.

 

[V6WBlue05]

Just remember.. the wheels that dirve the care are the ones that drive the spedo.