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1836 Views 16 Replies 7 Participants Last post by  mobiuslogic
Do the 2000+ Tauruses have only the ax4n transmissions or are there some with the ax4s transmissions. how could you tell the difference? just looking at the side of it?
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the easiest way to tell what you have, crawl under the car and look at the tranny pan. I believe the AX4N is 16?? bolt pan?? But its also stamped in the pan. I have an AX4N in my 96 if it makes a difference
I don't think that ford used the AX4S after like 98. I have a 97, and it's an AX4N.
AX4S was used at least until '99, according to my manual.
I thought the tranny pans were interchangable, and they often had ax4n stamped on them even though they were bolted to a different tranny.

I think you can check the VIN, or maybe even see if you can look down and try and read what's on the valve body cover.
I know that the pan covers are different, they have different part numbers for filter kits and different cover gaskets.
There are two different bolt patterns I believe. One for AXOD / AXOD-E / AX4S, and the other being for AX4N, 4F50N.

And you can't go from just what the pan says. My '93's pan said "AXOD metric" when it was really an AXOD-E. And I believe there are 4F50N's whose pans say "AX4N".
or u can look at ytour owners manuel and match it up with the eingne u have in the back of the book and that will tell u about the tranny
Originally posted by BMWevo600@Feb 3 2004, 10:47 PM
or u can look at ytour owners manuel and match it up with the eingne u have in the back of the book and that will tell u about the tranny
Shut up BMW.

There are vulcan's with both the AX4N and the AX4S. I have a 2000 FFV and I've got an AX4S also. Here, this is off my 2000 Ford CD:

The AX4S automatic transaxle was formerly designated AXOD. To avoid unnecessary re-tooling and to make sure of correct identification, the AX4S will retain its original AXOD METRIC main control cover.

The AX4S has two planetary gearsets and a combination planetary/differential gearset. Four multiple-plate clutches, two band assemblies and two overrunning clutches act together for correct operation of the planetary gearsets.[/b]
The AX4N's main cover reads "AX4N METRIC." Just crawl under and take a peak. You can put a towel down if you're affraid of getting dirty.

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son of a biscut!! I guess that means i have the ax4s then. The lower pan says AXOD metric.

Which is the better transmission? the AX4N or the AX4S(AXOD)?
I don't know about the individual gears but I know the AX4N has a final drive of 3.99 and the AX4S has a final drive of *I think* 3.67 (Maybe not exactly, but pretty close to that). The duratec being a higher revving motor and a DOHC, has it's powerband slightly higher than the vulcan, and that's why it has the lower gear ratio on the differential where as the Vulcan is a torquey motor with lots of low-end power, and as such has a taller final drive to get the power to the ground.


EDIT: As for which is "better" I have no idea. But the trannies are better matched Vulcan/AX4S and Duratec/AX4N given their powerbands. I would say the AX4S merely because they've been using it longer and as such have had more time to bang out the problems, even between the Gen 3 and Gen 4s.
AX4N has a final drive of 3.99 and the AX4N has a final drive of *I think* 3.67[/b]
ummm, rephrase.
This means that the differential that splits to power from the tranny to the 2 wheels will spin 3.99 times to make the wheels spin ONCE. The gear ratio of Differential Input to Output (wheel spin) is 3.99:1. So the differential will spin 3.99 times (or 3.67 times) to make the wheels spin once. However, the fewer number of revolutions means more torque is required. This is called gear reduction. I've probably got you more confused, so here's some good links. Sorry

Gear Ratios

There's also more links in those articles. Hope that helps.

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no no...i know about the gears
u put that the ax4n has the 3.99, and then you said that the ax4n had the 3.67's. Does the ax4n have both of those ratios, or is one for the ax4n, and one for the ax4s?
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the AX4N has a final drive of 3.99 and the AX4S has a final drive of *I think* 3.67[/b]
Post fixed. My bad. Calculus test tomorrow and I'm trying to do calc and the TCCA at the sametime. Blasted TCCA, keeping me from my homework, I shake my fist at thee!

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u think i would be able to bolt up an ax4n to the vulcan and give it even more "oomph" off of the line? what would be involved with all of that jazz. good luck on that cal bro, i am in that same kinda torture right now.
Yes, it'll bolt up because there are some Vulcans with the AX4N. However, although you'll gain "oomph" off the line with the higher gear ratio, you'll lose I think more in the top end because the vulcan can not go as high as the duratec and tends to bog down in the top end. I would just stick with it. If anything, just swap the differential gears, but I don't know it that's possible. You'll keep the gear combinations of the AX4S with the differential of the AX4N, somewhat giving you the best of both, but I don't know if it's possible or worth it.

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