I have 2 164s that are equipped with 3.31 differentials and 205/75-15 tires.
Likewise both are equipped with the Laycock DeNormanville type J overdrive.
Speedo and odo readings have been way off. Does anyone know what speedo gear should
be right or even a good approximation for this combination?
I understand some of the 240s have gearing like this, although I imagine that their tires
are not as big. BTW on my 145E an actual mileage check showed that the bigger tires
caused the speedo and odo on that car to read 7% below actual mileage.
It does NOT have OD.
Any help greatly appreciated!
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George Downs Bartlesville, Oklahoma
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