NV3550 to 32rh swap questions - JeepForum.com

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post #1 of 19 Old 07-18-2013, 07:03 PM Thread Starter
stottman
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NV3550 to 32rh swap questions

First off let me say this isn't a thread about why I am getting rid of the nv3550 or which tranny is better, just looking for some useful information for the swap. I searched but there is very little for this particular swap, find a lot about the aw4 but not the 32rh.

So I plan on swapping out the tranny to the 32rh, here's the list so far of what I think I need.

32rh, torque converter, trans mount adapter, pcm for an auto, tranny lines, flex plate, shifter cable, kickdown cable, shifter assy, tranny temp gauge.
If there is anything missing chime in.

When it comes to the swap does it use the crank position sensor that was used on the manual or does it use a different one of an auto, also I know there is a sensor or something on top of the tranny now that doesn't get used for the manual but IIRC it gets used on the auto. If someone can point me in the right direction that would be awesome.


2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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post #2 of 19 Old 07-18-2013, 07:07 PM
Necko2529
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Do you have a stock radiator without the transmission cooler on the bottom?

Rokmen TT, Rokmen control arms, Novak NV241 cable shifter, JKS 1.25" BL + 1" MML.

Anybody can take advice if it doesn't interfere with their plan.

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post #3 of 19 Old 07-18-2013, 07:08 PM
JBTJ
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Quote:
Originally Posted by stottman View Post
First off let me say this isn't a thread about why I am getting rid of the nv3550 or which tranny is better, just looking for some useful information for the swap. I searched but there is very little for this particular swap, find a lot about the aw4 but not the 32rh.

So I plan on swapping out the tranny to the 32rh, here's the list so far of what I think I need.

32rh, torque converter, trans mount adapter, pcm for an auto, tranny lines, flex plate, shifter cable, kickdown cable, shifter assy, tranny temp gauge.
If there is anything missing chime in.

When it comes to the swap does it use the crank position sensor that was used on the manual or does it use a different one of an auto, also I know there is a sensor or something on top of the tranny now that doesn't get used for the manual but IIRC it gets used on the auto. If someone can point me in the right direction that would be awesome.
I do know it must be for the auto. Only 1 bolt to hold it to the bell housing. The stick is a 2 bolt sensor.
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post #4 of 19 Old 07-18-2013, 07:12 PM Thread Starter
stottman
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My radiator has the holes for the tranny cooler on it. If I'm understanding you correctly the cps is only held on by one bolt on the auto, so it's probably different than the one on the manual.

2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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post #5 of 19 Old 07-18-2013, 07:15 PM
JBTJ
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Quote:
Originally Posted by stottman View Post
My radiator has the holes for the tranny cooler on it. If I'm understanding you correctly the cps is only held on by one bolt on the auto, so it's probably different than the one on the manual.
Correct. Manual is a 2 bolt design.
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post #6 of 19 Old 07-18-2013, 07:18 PM Thread Starter
stottman
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Do you happen to know if the wiring harness plug is the same for both. Also, any idea on that other sensor

2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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post #7 of 19 Old 07-18-2013, 07:20 PM
JBTJ
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Quote:
Originally Posted by stottman View Post
Do you happen to know if the wiring harness plug is the same for both. Also, any idea on that other sensor
No, I do not. I only have the auto you're converting to.
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post #8 of 19 Old 07-18-2013, 07:44 PM
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Quote:
Originally Posted by stottman View Post
also I know there is a sensor or something on top of the tranny now that doesn't get used for the manual but IIRC it gets used on the auto.
It sounds like you're asking about the harness plug for the torque converter lock-up solenoid?...
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post #9 of 19 Old 07-18-2013, 09:18 PM
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Quote:
Originally Posted by stottman
So I plan on swapping out the tranny to the 32rh, here's the list so far of what I think I need.

32rh, torque converter, trans mount adapter, pcm for an auto, tranny lines, flex plate, shifter cable, kickdown cable, shifter assy, tranny temp gauge.
If there is anything missing chime in.
Do you still need these items? Or you do have them, but they will be needed for the swap?

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post #10 of 19 Old 07-19-2013, 02:45 AM Thread Starter
stottman
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No I haven't bought anything yet, funds are tight because I just did the 8.8 swap with the artec truss. Just trying to get all the research done before I start buying stuff. If it is the harness plug for the torque converter lock-up solenoid does it just plug right into the tranny. This is what it looks like
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2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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post #11 of 19 Old 07-19-2013, 07:16 AM
Jerry Bransford
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Your 2000 already has all the wiring & connectors required for the 32RH, I converted my '97 TJ from an AX15 to the 32RH. You will also need a replacement 2000 ECM that is programmed for the automatic so it can control the lockup torque converter.

I don't know what the length of your 231 tcase's input shaft is but if it is the same as mine was to seat into the oe AX15, you will need to install a new extended output shaft seal into your 32RH. That is a machined aluminum seal you can get from Teraflex (the easiest source) at www.teraflex.biz, www.summitracing.com, and a few other suppliers. I discovered this when the rear of my new 32RH started leaking atf like a sieve because the 231's input shaft wasn't long enough to seal the 32RH's output shaft. The new extended seal is tapped into place with a bfh.

Hope that helps get you started.

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post #12 of 19 Old 07-21-2013, 04:06 PM Thread Starter
stottman
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Thanks everyone for the replies, as far as the tranny lines there is just two right, output and return. Also, do you guys recommend an aftermarket external tranny cooler and or filter.

2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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post #13 of 19 Old 07-21-2013, 04:26 PM
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I installed a temp gauge and decided I didn't need a cooler as output temps were around 165~175 most of the time and with the stock cooler it was about 20 degrees cooler than that. But I did install an external filter which I change out every oil change and add a fresh quart to the mix.

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post #14 of 19 Old 07-21-2013, 05:22 PM
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Another external transmission filter...

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post #15 of 19 Old 07-22-2013, 05:11 AM Thread Starter
stottman
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I meant a secondary one that goes between the tranny and cooler

2000 Tj with 4" lift and and 33"s, she's a work in progress got some other perfomance mods as well.
F350 King Ranch Turbo Diesel on 35's
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