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Old 19-06-2008, 08:19 PM   #1
au^dude
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Default Diff Gears

OK just a question before i go and spend money on diff gears.
Lookin at getin 3.7 for my AU fairmont. Now as far as i know it has 3.23 or something like that.
Now when i fit my 3.7 my odo will be out, how do i fix that? Does ford have a speedo sender for the 3.7 gears like they have for the 3.45s?


Last edited by au^dude; 19-06-2008 at 08:32 PM.
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Old 19-06-2008, 08:33 PM   #2
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Get a black speedo gear 23 teeth from memory and this will be as close as it gets.
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Old 19-06-2008, 09:12 PM   #3
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Quote:
Originally Posted by Stav
Get a black speedo gear 23 teeth from memory and this will be as close as it gets.
And how close is it?
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Old 19-06-2008, 10:00 PM   #4
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Quote:
Originally Posted by au^dude
And how close is it?
About a 5-7 km error. You will be going slower than the speedo reads, but hey, that's a good safety margin I reckon! LOL!

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Old 19-06-2008, 10:16 PM   #5
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Thats not too bad better to be under then over. Would it be 5-7 km all the time? As in if im goin 60km or 100km
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Old 20-06-2008, 12:25 PM   #6
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Id say it would be 5-7 %, so 60 would be 55.8-57km/h when it read 60, and 93-95 at 100 indicated.
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Old 20-06-2008, 02:19 PM   #7
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Is there no way to get it spot on?
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Old 20-06-2008, 08:36 PM   #8
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jaycar speedo corrector is probably the easiest and cheapest way, i know it can be done with a flash tune on ba's, but not sure on au's
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