You do not have a 241 in a KJ
read up


Command-Trac

Command-Trac (NP/NV-231 or NP-207) was introduced along with the Jeep Cherokee (XJ) in 1984. The system offers a basic chain-driven, aluminum, "shift-on-the-fly" transfer case. The "shift-on-the-fly" feature provides manual ease and assist while engaging gears. Although Command-Trac does include 4x4 capabilities, it can only be driven under temporary usage; due to the axles locking and all four wheels rotating in unison giving out extra traction, therefore it cannot be driven on dry pavement under most circumstances. 4-wheel modes are most commonly used for wet/slick surfaces or extreme weather conditions (rain, snow, etc.) (4H), towing (N), and off-road activities (4L). Even though Command-Trac was created over 20 years ago, it is still readily available in the Jeep Liberty and Jeep Wrangler even now.
There was a modified version known as NP-231 HD which was supposidely a "heavy duty" version for the Jeep Grand Cherokee ZJ with big V8 Engines. The NP/NV-231 case was a chain driven that takes a 21 or 23 spline input shafts. Where the 23 spline was for the AX-15 transmission, and the 21 spine was used for the AX-5 and BA 10/5 transmissions. Low range for this case was 2.72 and high range was 1.00
The Jeep Grand Cherokee is the only brand inside the company marque to totally discontinue this 4WD system from its lineup during mid-production (unlike the XJ whose entire lineup was dropped rather than Command-Trac itself). The reason behind this was its poor sales along with the SE trim among consumers, an improved Selec-Trac and simplistic Quadra-Trac had the convenience and comfort of "Full-Time" 4WD that Command-Trac obviously lacked for luxury SUVs; it was quickly dropped from the ZJ platform in 1996
Applications:
Jeep Cherokee (XJ) 1984–2001
Jeep Comanche (MJ) 1986–1992
Jeep Wrangler (YJ, TJ, JK) 1987–Present
Jeep Grand Cherokee (ZJ) 1993–1995
Jeep Liberty (KJ) 2002–Present
[edit]Selec-Trac

Selec-Trac also debuted with the compact Jeep Cherokee in 1984, borrowed from the AMC Eagle. It is a more common feature in the upscale version Jeep Wagoneer (XJ), and Dodge Durango models (1998-present). It has a shift-on-the-fly transfer-case like Command-Trac but unlike it, Selec-Trac has option of full-time 4WD (making 2WD somewhat of a novelty). Full-Time 4WD has the ability for the front and rear axles to rotate at different speeds, making driving on dry and wet surfaces possible year-round without shifting back to 2WD again; Yet all other 4x4 modes from Command-Trac are still available.
Other Jeep vehicles used Selec-Trac like Jeep Grand Cherokee, before being discontinued on that platform in favor of the electronically-controlled Quadra-Drive II AWD system in 2005. Selec-Trac is currently only available for the Jeep Liberty lineup.
Selec-Trac uses the New Venture Gear NV242 transfer case.
Applications:
Jeep Cherokee (XJ) 1984–2001
Jeep Wagoneer (XJ) 1984–1990
Jeep Comanche (MJ) 1986–1992
Jeep Grand Cherokee (ZJ, WJ) 1993–2004
Jeep Liberty (KJ) 2002–Present
Dodge Durango 1998-Present
[

The ONLY HD transfer case offered in a Jeep was the NV241 and ONLY in a wrangler
read up again

The Wrangler Rubicon (named for the famed Rubicon Trail in the Sierra Nevada Mountains) was introduced in 2003. It featured front and rear Dana 44 axles with built-in air-actuated locking differentials, 4:1 low-range NV241 transfer case, 4.10:1 differential gears, 16 in alloy wheels, and Goodyear MTR P245/75-R16 tires. 2003 to 2004 featured a standard NV3500 five-speed manual transmission, which changed in 2005 to a Mercedes-sourced six-speed. The optional 42RLE four-speed automatic transmission was available from 2003 to 2006.


Google can be your freind whan you dont know

Where did you copy and paste that from? Whats the date on it? All it says is the Liberty had either a 231 or 242 transfer case from 2002 to present. Maybe this was written before 2005 when you could get the NSG370 6 speed. It makes no mention of that tranny so it must be. I just looked under my jeep at the tag on the transfer case and it's a 241.

_________________
2006 Sport 4X4, Deep Beryl Green, NSG370, NV241J, Lifted with OME 927/948 and Bilstein, JBA 4.5 UCA's, Custom 3" Rear Y-Link Extension and Swaybar Relocation, 265/75-16 Toyo Open Country AT2 tires, Black Plastidipped bumpers, flares, and doors, Pioneer speakers, Alpine head unit, 1200w Phoenix Gold Amp, 12" Dayton Reference sub.

Wikipedia
Did you read the post just under this one?
Also they have info on the JK in their stuff
I am not saying that this is written in stone but they seem to be correct 99% of the time

Best way to tell is that the tag reads either
NP or NV have a REAL close look
New Venture Gear and New Process Gear

OH and take a picture
you may have some odd ball thing going on there

Best I could do for info on the NP241
Starting in about 1987, the New Process 231/241 series transfer case became standard in Jeep, Dodge, and Chevrolet applications. These transfer cases are part time 4WD (Shift positions 4HI - 2HI - N - 4L). They have a relatively thin aluminum housing. They are 1:1 direct drive in high range, and use planetary reduction gears for low range with a ratio of 2.72:1 They use chain drive for the front output. The NP241 was typically used in V8 applications.
Exact identification:

These New Process cases have a circular plate, about 2" in dia., on the rear of the case, in the center. Full identification info for the case is on this plate

Bolt Pattern:

Jeep, Dodge and Chevy versions all use a 6 bolt circular bolt pattern. This pattern is NOT symmetrical and will only bolt up one way. You can typically bolt a Jeep unit to a Dodge transmission and vice versa, however Chevrolet units are NOT cross compatible: While GM uses the same 6 bolt patter, they have it rotate approximately 90 degrees from that used by jeep dodge.

In all of these 6 bolt applications the Klune-V Extreme Underdrive will bolt up to these transfer cases directly with adapters necessary. Some may require a spacer.

Try this link it may help
http://trucks.about.com/library/bl/bl_05jeepliberty.htm

and more searching gives this
I was wrong on the HD but so was my sorce
Jeep Liberty/Transfer Cases
From Wikibooks, the open-content textbooks collection
< Jeep Liberty
Transfer cases for the Jeep Liberty are built by New Venture Gear, hence the NV prefix. New Venture inherited New Process Gear from Chrysler, therefore the older transfer cases are prefixed with NP. Whether prefixed with NV or NP, parts are interchangeable between the same transfer case model.
Full-time 4WD can be used on pavement because it utilizes the differential in the transfer case. Part-time 4WD Lo and 4WD Hi can't be used on pavement because they lock the axles together in the transfer case. While the 2WD, full-time 4WD, and part-time 4WD Hi modes support the maximum vehicle speed, the part-time 4WD Lo mode does not. Part-time 4WD Hi should not be engaged over 55mph. Essentially, part-time 4WD should be used for off-road, full-time 4WD for maximum traction on-road, and 2WD for everything else.
Contents
[hide]
1 NV231
2 NV231HD
3 NV242
4 Slip Yoke Eliminator
[edit]NV231

The NV231, utilized in the Command-Trac system, is a mechanically shifted part-time transfer case. Its chain-driven aluminum construction makes it weaker than gear-driven iron transfer cases.
Mode Gear Ratio
2WD 1.00:1
4-HI 1.00:1
N N/A
4-LO 2.72:1
[edit]NV231HD

The NV231HD, also known as Command-Trac HD, is a heavy duty version of the standard NV231 tranfer case. It is available in the 2005-2006 Jeep Liberty Renegades.
[edit]NV242

The NV242, also known as Select-Trac, is a mechanically shifted full time tranfer case.
Mode Gear Ratio
2WD 1.00:1
4-HI Part Time 1.00:1
4-HI Full Time 1.00:1
N N/A
4-LO 2.72:1
[edit]Slip Yoke Eliminator

A slip yoke eliminator replaces the slip yoke in the rear of the transfer case with a fixed yoke. Primarily this allows for the installation of double cardon joints and reduces the driveshaft angle by increasing the driveline length. These two changes help cut down on vibration caused by lifting the Jeep. As an added benefit, it prevents the transfer case from spilling fluid everywhere if the driveshaft gets pulled out. When installing a slip yoke eliminator, a drive shaft with an integrated slip yoke and double cardon joints must also be installed.


From some other reading that I feel is not a "sorce" but rather just "food for thought" so I will not post it
I read that the HD231 in the renny is just like the HD231 in the V8 grand
Just a marketing ploy to sell you something ,thus EVERY THING IS THE SAME
they just added HD behind the 231 so that you think you are getting something more
if there was a differance I would have found it by now
it still has a slip yoke wich tends to also be the weak point on the 231

Jason, you are one of the most respected members of LOST and consistently post very informative, educational, helpful posts. That is why it was such a surprise to me that you were so insistent, but still wrong...you get a pass...
As far as our HD transfer cases, I have no idea if they are more stout than the others or not. But as I said earlier, they hold almost double the fluid. To me, that is a great thing right there. Mine took just over two quarts...

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

the standard 231 in my TJ
holds 2 qts?

According to what I have read, and I am going off of memory(and I do not have the 231, so I surely do not know 1st hand) the 231 holds 2.5 pints, and the HD242(foung on liberty 6 speed manuals) holds 4.2 pints.

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

the Nv 241 HD found on the

Oops, I mean the NV241 HD (not 242-too many numbers...so confused!!)found on the 6 speeds take 4.2 pints. It looks like the nv231 holds 2.2 pints, and the nv242 holds 2.85 pints. Sorry I do not remember the source, as these were just figures that I cut and posted for a document in my records. I assume they are correct...

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

the Nv 241 HD found on the

Oops, I mean the NV241 HD (not 242-too many numbers...so confused!!)found on the 6 speeds take 4.2 pints. It looks like the nv231 holds 2.2 pints, and the nv242 holds 2.85 pints. Sorry I do not remember the source, as these were just figures that I cut and posted for a document in my records. I assume they are correct...[/quote]


Dude dont take this the wrong way but you do not have a NV241 in your KJ
I stoped and talked with the local 4X4 shop/tranny & T-case guroo and this is what I got about the
231 and 231HD
The 231HD came in grands with V8's ,he is not real knowlageable on KJ's
the only differance in that the HD version has a bigger input shaft and holds more oil

If you read the post that I coppied over you will see that the
231 comes on the YJ-XJ-TJ-KJ-JK but no mention of it being HD in any
now I am not saying that they did not put one in but it is not common
as far as the NV241 that is the Rock-Track T-case that ONLY came in the rubicon with 4 to 1

the NP241 was used mostly in GM trucks and suv's again read the posts
the NP241 and the NP/NV231 are the same inside but differant out side ,mounting thing

All that being said my guy said that you can swap from any NP/NV 231 to any 231 or if you bust up the insides of a NP241 you can swap the insides to some extent
but the NV241 is in a class all its own
how ever the standard version of the 231 will hold moderate V8 power easy as long as you do a SYE ,weak out put shaft, and will also do it with a 4 to 1 conversion just holds less oil so you need to change it more often
I know that the 231 will hold up to an LS1 running 44-60 combo turning 5.13 gears and 37" Iroks
I have seen a few guys in the club run this combo and climb level 5 trails all day

I would check that tag real close if it says any thing other than NV231 HD I would worry
if it says NP241 I would realy realy worry and if it says NV241 then you have a 1 of a kind KJ with a factory installed Rock-track T-case

Dang Jason!! You made me crawl under my jeep, out in the street, at 7:15A.M.!! It is kinda cold out there!!
My tag reads : 241 J And no, I do not think it is the same case that comes in a rubicon. All I was saying, is that it has been written somewhere, and I do not remember where, as being "Heavy duty." My point was that it holds more fluid, and that has to be good...and I do not believe that mine is one of a kind. That is just the way they come off the old assembly line. So go ahead and have a cup of joe and worry about something else. Who the he#@ cares anyways? All of these jeep mechanical t cases are very proven, no matter which one you have...

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

POWERTRAIN
Engine 3.7L SOHC V6
Displacement (cu. in.) 226
Net Power – kW (hp) @ rpm 157 (210) @ 5200
Net Torque – N·m (lb-ft) @ rpm 319 (235) @ 4000
Fuel System Sequential multipoint electronic fuel injection
Transmission
6-speed manual with overdrive and hydraulically assisted, adjustment-free clutch Std.
4-speed automatic with overdrive and lockup torque converter; electronically controlled Opt.
FOUR-WHEEL-DRIVE SYSTEM (transfer case)
Command-TracTM NV241 HD (with manual transmission), part-time; 2-speed with
shift-on-the-fl y; includes low range (2.72:1) and Neutral Std.
Command-Trac NV231 (with automatic transmission), part-time; 2-speed with
shift-on-the-fl y; includes low range (2.72:1) and Neutral Std.
Selec-TracTM NV242 full-time; with shift-on-the-fl y; includes low
range (2.72:1) and Neutral, allows for full- or part-time four-wheel drive (4WD) BODY/SUSPENSION/CHASSIS

You can find this info at:

www.jeep.ca/en/common/pdf/specs_liberty.pdf

To quote you Jason: Google can be your freind whan you dont know

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

after this I am going to drop it
but I think that is a miss print
I stoped today and asked about the 241HD
The answer
"Yes thay make a 241DH and dodge uses them for that their HD trucks"
"look under that 2500 with a cummins it has a 241HD"

it is an option in the 2500 and standard on the 3500 but they put them in a KJ?
Think about it for a while
it can handel the torque from a cummins and hold up under a 3500 ,1 ton, pick up but they put it under a KJ?
the KJ is the only jeep that came with this T-case?
I do not doubt for a minute that you have a 231HD but I can not belive until I see it a KJ with a T-case that weighs over
100# dry

If you do have this T-case I would pull it sell it and get a 231 cause it is burning gas and soaking up power
the guy told me that you can hardly turn them by hand cause they are so heavy in side
he also said just look for the pto port
when i told him some one has 1 in a KJ he laughed and said
"I doubt that they cost a bunch besides why the hell would you need on a KJ can not even put a strain on a 231"
"I have seen them several times mistaged 242 tag on a 231 in a TJ just look for the pto port, no port no 241HD end of it"

http://dodgeram.org/tech/specs/tranfer_case.htm

You sure it didn't look like this pic?

Granted the serial # will be different.No KJ ever,and mean ever,came with the 241J t-case.The 241J t-case is a Jeep Rubicon only t-case,unless you swapped one in,that would be the only way you got one.The 231 and 242 t-case are about $600-$750 brand new,the 241J t-case(RockTrac) is $1600+,doubt Jeep would make that mistake on the assembly line.


That is a typo,no KJ(as stated before) has ever came with or was even offered with the 241 t-case.The 241 t-case is a 3/4ton-1ton rated t-case and is way overkill for a KJ.It should read the 242J,231J,or 231HD,not the 241HD.That is a fact.Go to a junk yard and see if they have a 241HD t-case and look at it and compare it to the one under your KJ,it will be a huge difference,I promise.


Your 100% correct.

Holy Moses guys. I crawled under, and that is what it said. I changed the fluid and it took just over 2 quarts. I looked it up and printed it, that is what it said. Do you have to be hit over the head with a hammer?
No, it is not the same transfer case as found in the rubicon. Why would they put a beefier t case in a cheeper manual? I have no idea. Maybe the guts are different. All I can tell you is what is plain as day right in front of my face. The tag is stamped, not red and it says "241 J" So I am not posting on this anymore....good luck to all...

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

O.K. so I lied, and am making another post. I found this sight, and I think the hangup is on the HD part. That as you said must be a typo. Check out:
http://dodgeram.org/tech/specs/tranfer_case.htm

The hd is way too big and holds too much fluid as you stated. But it is the NV241 as posted in the chart I believe. The fluid capacity matches up with my experience.

I also found this :http://www.jeepsunlimited.com/forums/archive/index.php/t-584253.html

one poster stated:
So this is a bit strange then. Jeep decided to replace the "Command Trac" case in the 2005 renegade with the "HD Command Trac" or NV241, but yet no one has busted a NV231 in a KJ yet (if you guy out west havn't, then I doubt anyone has!), instead of fixing the weak internals of the KJ "Selec-Trac" NV242, which seem to break fairly often..

I don't get it. DC does some strange things. As a side note, can anyone confirm that the 2005 Renegade actually has the NV241 x-fer case? The only link I can find on the web is here:

http://www.jeephorizons.com/tech/2005kj_specs.html

Check this link for the NV241 (and 231) specs (http://dodgeram.org/tech/specs/tranfer_case.htm)

So guys, I appreciate your digging into this, and I think we are both partially correct, and both partially wrong. I KNOW I have the nv241, but it is NOT HD.
Take care all....

_________________
'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)

I know I said I was done but I can not help my self
You have a liberty with a NV241 nonHD
OK if you say so
you also have the only production KJ with 4 to 1 low range as the ONLY info I have ever read states
that the NV241 is the rock track and is offered ONLY in the Rubicon


OH and you must not be reading my posts
I just posted that link

i used to have an 89 YJ sahara. and that had the ax-15 and 4.2 I6. that thing in 1st and 2nd in 4-lo was NUTS.

i actually got stuck with it in mud, in a big ditch, couldnt rock back and forth becuase the ditch was just as long as the wheelbase. and i was pointing at an electrical tower. so i tied the come-along to it and my jeep, and had it i 4-lo and 1st gear, and got out, and ratcheted the come-along while the tires are spinning very slowly until it got traction and started climbing out of the ditch by itself and i jumped back in and got to flat ground hahaha

but like everybody else was saying, i LOVE stick offroad. in 4-lo and 1st or 2nd gear, you dont gotta touch the clutch whatsoever, you pretty much have to be stopped to worry about stalling out

_________________
2002 Cactus Green Renegade~OME HD/Rancho
235-85-16 Firestone Destination MT's~Detroit Locker~AL's 4.5 Arms
ARB bumper/Superwinch 9k~PIAA 540 driving lights/PIAA reverse lights~Crane 8.25 diff cover