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diff ratio change/calibration

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Hi Roland,

Ive got a fg g6e turbo zf 6speed. std ratio is obviously 2.73.

ive put a different diff in it and the ratio is 3.07.

how do i cange the ratio correctly in the pcm so my dash is accurate.

it is currently out about 12-15 kms.

ive already changed the diff ratio under the axle sub heading, but it hasnt changed my speedo calibration.

is there another setting that needs to be changed.


thanks alot

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