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Old 12-03-2012, 12:54 PM   #1
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MTX75 Final drive ratio identification

I'm looking for information on swapping a 3.41 final drive trans into my 05 ST that has the 3.83 (I think) to reduce 80mph commute rpms at my new job.

So, how do I positively ID a 3.41 trans in the wrecking yard? Is there a code on the trans, and where is it located?

Thanks in advance!


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Old 12-05-2012, 08:12 AM   #2
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Bump.

Does anyone know if the trans has a code actually on the trans that indicates final drive ratio, or at least the two letter trans code. If so, where should I look?
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Old 04-29-2015, 08:46 AM   #3
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I know this is a very old thread, but did you ever figure this out? I'm curious about finding one of these myself.
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Old 04-29-2015, 01:40 PM   #4
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Negative. Seems like there should be an ID stamped somewhere. I'm not finding anything on web searches iether, but I may not be searching correctly.

Can't trust the VIN code on our older vehicles because they could have swapped in a used or rebuilt of a different ratio.
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Old 04-29-2015, 01:50 PM   #5
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bummer. i know the s/se models of 08+ had 3.56 trans but from what i understand that bell housing won't bolt up to a zetec. i think the 03-04 duratecs had the 3.41 but again won't bolt up to a zetec.
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