Convert Spedo/odometer from MPH to KMH
#1
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I have a 1979 911SC which originally had a KMH speedometer and odometer. When the vehicle was imported to the U.S. several years ago, it was converted to MPH. The vehicle is now back in Europe and I want to convert it back to KMH. Changing the face on the speedometer to KMH is simple, but I also want to change the odometer. The unit has a 20/30 gear on the odometer now (Miles). What gear do I need for a conversion to KM?