Which Transfer Case!

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08-15-2009, 05:03 PM

johnferg69

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Year: '91

Model: Cherokee

Engine: 4.0

Which Transfer Case!

How can I tell which transfer case I have?
I have a '91 XJ 4.0 auto w/ D35 rear end.

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08-15-2009, 05:19 PM

jd4x426

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Year: 1996

Model: Cherokee

Engine: 4.0

if you have full time 4 wheel drive you have the 242 if you dont you have the 231 if you dont understand that go under the jeep there is a red circular tag on the driverside of the tcase towards the back of the vehicle it will say either 231 or 242

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08-15-2009, 05:19 PM

Jeep Guy

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Year: 1997

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Engine: 4.0 liter H.O. I-6

Quote:

Originally Posted by johnferg69

How can I tell which transfer case I have?
I have a '91 XJ 4.0 auto w/ D35 rear end.

get underneath your Jeep and take a look. there should be a little metal tag on it that will tell you which one it is.

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08-15-2009, 05:34 PM

Jeep450r

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Model: Cherokee

If your transfer case gear shifter thing (to the left of your P,N,R,4,3,L shifter) has the Full time 4lo option, then you have the NP232. If it only has part time 4lo, then you have the NP231.

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08-15-2009, 05:39 PM

johnferg69

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Year: '91

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by jd4x426

Hmmm! Well the transfer shifter shows
2WD
4part time
4full time
N
4Low
So this means I have a 242 or 232?? How good or bad is that??
I check for a tag and can't find one.

Last edited by johnferg69; 08-15-2009 at 05:43 PM.

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08-15-2009, 06:01 PM

jd4x426

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Year: 1996

Model: Cherokee

Engine: 4.0

you have the 242

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08-15-2009, 06:13 PM

johnferg69

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Year: '91

Model: Cherokee

Engine: 4.0

OK Next question What is the difference between full and part time?? I'm just use to 4Hi and 4Lo

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08-15-2009, 07:09 PM

fantic238

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Year: 1988 limited

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Engine: 4.0 litre

Quote:

Originally Posted by johnferg69

OK Next question What is the difference between full and part time?? I'm just use to 4Hi and 4Lo

The np242 tc has a central lockable differential. In 4x4 full time the diff is unlocked and you can drive the jeep on every surface including asphalt. In 4x4 part time the diff is locked and you can drive only on loose and slippery surfaces.