I am trying to convert a 67/68 120 Mph odometer(with trip) to be calibrated for Kph. The speedometer is easy, sticker or screen print; but i would like to have the odometer geared for Kps as well. I know a 200 Kph gauge was available for the export model T5. They are for sale $$$ but I would like to modify my self. I believe it's got to do with the gears in the speedo head. Help greatly appreciated.

 

Might be easier to change out the gear on your transmission so that the speedometer spins at the proper rate in kph instead of mph.

 

Has anybody know what Ford changed between the Mph & Kph speedo heads?