2013 Speedometer Recalibration After Gear Change
I have a 2013 GT Premium Convertible 6-speed with factory 3.31 gears without any kind of tune. I want to install 3.73 gears and know that the speedometer has to be recalibrated. Problem is I've contacted five local dealers. Three told me that Ford has the computer locked and they cannot change the ratio (can that be?). One told me that they "might" be able to make the change but wouldn't but wouldn't know for sure until they put it on the machine. The last dealer recommended a local "tune" shop. Suggestions will be appreciated!