What kind of trans and tcase do i have?
Thread Starter
Seasoned Member
Joined: Jun 2009
Posts: 472
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From: Middletown, Ohio
Year: 1997
Model: Cherokee
Engine: Straight 6 4.0L
What kind of trans and tcase do i have?
Stock 97 cherokee country-4X4
4spd w/overdrive?
Can anyone talk about specs of the tcase?
They work fine, but assuming the POs have never touched these things-what kind of maintenence should i dive into?
Future problems?
Has 135,xxx miles
4spd w/overdrive?
Can anyone talk about specs of the tcase?
They work fine, but assuming the POs have never touched these things-what kind of maintenence should i dive into?
Future problems?
Has 135,xxx miles
CF Veteran
Joined: Sep 2009
Posts: 4,145
Likes: 0
you have an Asin-Warner AW4 automatic transmission, I would do a fluid and filter change on that.
the transfercase is either a NP231(part-time 4WD only) or an NP242(part-time and full-time 4wd)
Just change the fluids and you should be ok, both the transmission and transfercase are built tough and don't break under normal usage
the transfercase is either a NP231(part-time 4WD only) or an NP242(part-time and full-time 4wd)
Just change the fluids and you should be ok, both the transmission and transfercase are built tough and don't break under normal usage
CF Veteran
Joined: Jul 2009
Posts: 1,254
Likes: 11
From: London Ontario Canada
Year: 2000
Model: Cherokee
Engine: 4.0
take your VIN to a Chysler dealer and have him run it. he'll give you a couple of sheets with evey option and component it left the factory with.
CF Veteran
Joined: Jun 2009
Posts: 2,173
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From: Columbus, Ohio
Year: 1997
Model: Cherokee
Engine: 4.0, comp cam, 99 intake, apn header, neon injectors, Thunderbolt 2.5" High Flow Cat
Part time on the 242, or 4 hi and 4 low on the 231 should never be used on dry pavement. The 242 had a full time option. That you could leave it in all the time.
CF Veteran
Joined: May 2009
Posts: 10,424
Likes: 61
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
The NP242 "Select Trak" had full time 4wd, allowing you to use it on the road/dry pavement/etc, By the New Process Nomeclature system, it is also 1 point stronger than the NP231.
The NP231 "command Trak" did not have full time 4wd, you cannot use it on dry roads.
The NP242 4wd selection lever will have:
2hi
4wd PT
4wd FT
N
4 LO
The NP231 will have:
2hi
4HI
N
4Lo
The NP231 "command Trak" did not have full time 4wd, you cannot use it on dry roads.
The NP242 4wd selection lever will have:
2hi
4wd PT
4wd FT
N
4 LO
The NP231 will have:
2hi
4HI
N
4Lo
Last edited by 89Laredo; Oct 19, 2012 at 02:13 AM.
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