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Discussion Starter #1
I recently picked up a Tx10 from an 88 Pathfinder V6 manual:





Plan: I want to install AC crawler gears into the 88 because it has a stronger chain then the 04. then swap out my 04 Tx10 for the upgraded 88 Tx10.

Project vehicle: 04 Xterra XE 4x4 automatic SAS'd.

I'm looking for some info from Nissan experts. is this project possible? Will the 88 Tx10 manual work with my 04 automatic transmission?
 

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As long as both engines were v6 and both transmissions were auto. The manual version may work, but I believe there is a different oil passage for the manual vs. the auto.
 

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See that little "gutter" under the input shaft? You have to cut that off to fit it behind an automatic. Or you can swap the front covers. Otherwise it is a direct swap, you will need to migrate your speed sensor and the range/4wd switches over because the plugs will not match.

I would go ahead and change the output seals both front and rear as well, since you will have it all apart.
 

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Discussion Starter #4
simply grind off the gutter? or can I swap the cover from my 04 auto?

the speed sensor I have now, and range/4wd switches will not fit on the 88? how do I solve this issue?
 

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So the oil can pass from the manual transmission to the Tcase, not individually separated like a divorced Tcase is what u are saying? IS The 4 cyl manual setup same way?
 

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No...neither transmission shares fluid with the t-case.

The engineers have the gutter on the Manual to lubricate the front t-case seal... the auto lubricates it in some other way (fluid level would be my guess).

A 4 banger is the same except that the input shaft has a different number of splines.

To answer the original question, both t-cases are virtually the same. The newer one has a place on the case that the older one doesn't where the exhaust pipe is mounted to it. (this is a great way to tell the difference between the wide chain and thin chain cases)

I'm not sure the linkage is the same between the two...but the new linkage should mount on the old case.

Internally, besides the wider chain there is a difference in the output shafts among the different years of TX-10s but nothing you will have to worry about unless you are installing the NWF doubler.
 

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There are slightly different linkage arms on the earlier years. I bought a brand new in crate trans. and t-case that was supposedly for an early '87 or '88 and it had a shorter, straight arm. I could never find a year range or other correlation to what had that arm. It was a pretty easy fix to make a different link for it...or just swap the old one over.

Also, if you're doing gears, you can use any t-case - 4cyl, v6, - as the gear set replaced the input shaft.
 

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Discussion Starter #9
Ok here's the problem: how do I solve the issue of the speedo sensor? The TC I want to use is mechanical speedo and my xterra has an electric speedo.
 

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See the bolt just to the left of the speedo input? Remove that then pull the mechanical sender head out and install yours. They should swap without issue.
 

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Discussion Starter #11
onlyonedr, based on your answer. I'm assuming the electric speedo still has a small gear at the end which works with the input shaft just as the mechanical does. The difference is just how the info is sent from the TC? I have not dropped my TC yet to actually look at the 04's speedo sensor.
 

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Discussion Starter #12
Original question: *Can an 88 Pathfinder Tx10 manual work in an 04 Xterra automatic?
Ready to Swap



Stock 04 Xterra Tx10 automatic removed




88 Pathfinder Tx10 manual gears installed / painted and ready to go.

Front flange swap over, 04 speedo swapped over, 4x4 dash light plug swapped over. Oil gutter under the main input was cut and grinded off. Only mod needed to make a manual work in an automatic.
Ready to go in.



04 transfer case shift linkage was ¾” too long. ¾” was cut out and linkage was welded back together.


So to answer the original question will it work? Yes, it will work but you lose your 4x4 dash light indicator and the shift linkage needs to be modified. The indicator light switch was opposite on the 88 case than the 04 case. When my X is in 2wd my 4x4 light is on now, and when I’m in 4hi or 4lo my indicator light is off.
 

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So to answer the original question will it work? Yes, it will work but you lose your 4x4 dash light indicator and the shift linkage needs to be modified. The indicator light switch was opposite on the 88 case than the 04 case. When my X is in 2wd my 4x4 light is on now, and when I’m in 4hi or 4lo my indicator light is off.
I wonder, does the 4wd switch have two wires? I wonder if you swapped them if it would work right? Would be pretty easy to test.
 

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There should be two switches on the trans. One is normally open and the other is normally closed. Swapping their positions will "reverse" the light display on the dash.

You either reversed them or if you left the originals from the '88 in, they may just be reversed between the years.

It should be as easy as unscrewing them and swapping their positions. Or you can install the ones from your old case. Either way, it should be an easy problem to solve.
 
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