For all-around use, there is no doubt among non-biased knowledgeable Jeepers
that the NP242 Selectrac is the preferable choice. It has all of the
off-road only part-time modes of the NP231 (which locks the front and rear
axles together for more aggressive 4x4 ability), in addition to the
full-time 4wd setting so useful in bad weather on the highway. The
full-time 4wd setting connects the front and rear axles together via a
differential so you can run 4wd on the highway without the problems you'd
have with a part-time system that locks the front and rear differentials
together.

If some yahoo wants to say the NP-231 is slightly stronger, fine... but the
NP-241 doesn't have a history of breaking offroad anyway. Indeed, the
National Forest Service, at least in the local Anza-Borrego National Park,
uses NP-241 Selectrac-equipped Cherokees for their offroad desert patroling
needs.

Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/

"pipo" <pipo@hi.hinet.hr> wrote in message
news:bvp75g$i57$1@ls219.htnet.hr...
> In my rig, combination is 2H, 4PT, 4FT, N, 4L. So which one is better for
> ''all around'' use, 231 or 242?
> Thanks.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
>
>

 

For all-around use, there is no doubt among non-biased knowledgeable Jeepers
that the NP242 Selectrac is the preferable choice. It has all of the
off-road only part-time modes of the NP231 (which locks the front and rear
axles together for more aggressive 4x4 ability), in addition to the
full-time 4wd setting so useful in bad weather on the highway. The
full-time 4wd setting connects the front and rear axles together via a
differential so you can run 4wd on the highway without the problems you'd
have with a part-time system that locks the front and rear differentials
together.

If some yahoo wants to say the NP-231 is slightly stronger, fine... but the
NP-241 doesn't have a history of breaking offroad anyway. Indeed, the
National Forest Service, at least in the local Anza-Borrego National Park,
uses NP-241 Selectrac-equipped Cherokees for their offroad desert patroling
needs.

Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/

"pipo" <pipo@hi.hinet.hr> wrote in message
news:bvp75g$i57$1@ls219.htnet.hr...
> In my rig, combination is 2H, 4PT, 4FT, N, 4L. So which one is better for
> ''all around'' use, 231 or 242?
> Thanks.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
>
>

 

For all-around use, there is no doubt among non-biased knowledgeable Jeepers
that the NP242 Selectrac is the preferable choice. It has all of the
off-road only part-time modes of the NP231 (which locks the front and rear
axles together for more aggressive 4x4 ability), in addition to the
full-time 4wd setting so useful in bad weather on the highway. The
full-time 4wd setting connects the front and rear axles together via a
differential so you can run 4wd on the highway without the problems you'd
have with a part-time system that locks the front and rear differentials
together.

If some yahoo wants to say the NP-231 is slightly stronger, fine... but the
NP-241 doesn't have a history of breaking offroad anyway. Indeed, the
National Forest Service, at least in the local Anza-Borrego National Park,
uses NP-241 Selectrac-equipped Cherokees for their offroad desert patroling
needs.

Jerry
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/

"pipo" <pipo@hi.hinet.hr> wrote in message
news:bvp75g$i57$1@ls219.htnet.hr...
> In my rig, combination is 2H, 4PT, 4FT, N, 4L. So which one is better for
> ''all around'' use, 231 or 242?
> Thanks.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/
>
>

 

Come on over to Toronto Canada for our August Jeep run up to James Bay
and you can meet me and a bunch from here!

You can shift into and out of 4 part and full time and 2 wheel drive at
any legal speed.

4 low is for extreme traction and you must be stopped or better moving 2
kph when putting the shifter into it. Top speed in 4 low is about 40
kph or 25 mph and that is in top gear...

I treat my 4x4 part time high just like any other shift. If I see a
patch of snow coming, I hit 4 high, see dry coming and hit 2 wd.

The 'part time' is the more aggressive 4x4 mode. It physically locks
the front and rear axles together and gives really good/strong control.

This means at least one front and one rear tire are under power unless
you have a locker or limited slip which increases the number of powered
wheels.

The full time has a diff between front and rear, so in theory you can
still end up with only one tire spinning on ice.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

Come on over to Toronto Canada for our August Jeep run up to James Bay
and you can meet me and a bunch from here!

You can shift into and out of 4 part and full time and 2 wheel drive at
any legal speed.

4 low is for extreme traction and you must be stopped or better moving 2
kph when putting the shifter into it. Top speed in 4 low is about 40
kph or 25 mph and that is in top gear...

I treat my 4x4 part time high just like any other shift. If I see a
patch of snow coming, I hit 4 high, see dry coming and hit 2 wd.

The 'part time' is the more aggressive 4x4 mode. It physically locks
the front and rear axles together and gives really good/strong control.

This means at least one front and one rear tire are under power unless
you have a locker or limited slip which increases the number of powered
wheels.

The full time has a diff between front and rear, so in theory you can
still end up with only one tire spinning on ice.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

Come on over to Toronto Canada for our August Jeep run up to James Bay
and you can meet me and a bunch from here!

You can shift into and out of 4 part and full time and 2 wheel drive at
any legal speed.

4 low is for extreme traction and you must be stopped or better moving 2
kph when putting the shifter into it. Top speed in 4 low is about 40
kph or 25 mph and that is in top gear...

I treat my 4x4 part time high just like any other shift. If I see a
patch of snow coming, I hit 4 high, see dry coming and hit 2 wd.

The 'part time' is the more aggressive 4x4 mode. It physically locks
the front and rear axles together and gives really good/strong control.

This means at least one front and one rear tire are under power unless
you have a locker or limited slip which increases the number of powered
wheels.

The full time has a diff between front and rear, so in theory you can
still end up with only one tire spinning on ice.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

That's four wheel drive high range (direct) part-time and four
wheel low range part-time, like putting it low gear, again. 2.72 to 1
ratio to be exact, like you may need to pull a friends boat up a ramp,
out of the water. I wouldn't worry about breaking it with a six
cylinder.
Same here, Guy.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

That's four wheel drive high range (direct) part-time and four
wheel low range part-time, like putting it low gear, again. 2.72 to 1
ratio to be exact, like you may need to pull a friends boat up a ramp,
out of the water. I wouldn't worry about breaking it with a six
cylinder.
Same here, Guy.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

That's four wheel drive high range (direct) part-time and four
wheel low range part-time, like putting it low gear, again. 2.72 to 1
ratio to be exact, like you may need to pull a friends boat up a ramp,
out of the water. I wouldn't worry about breaking it with a six
cylinder.
Same here, Guy.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

pipo wrote:
>
> And few questions more please, so seems like I have Selec-Trac 242, what is
> difference between ''4 part time'' and ''4 lo''? I usually use 4 full time
> and I didn't try to use 4 lo just because I'm afraid to break something. I
> don't live in USA (unfortunatelly) and if something is broken than... better
> not to think about it. But anyway, my Jeep has never needed something more
> than ''4 full time'' to get out of some ''bad '' places. And of course, I
> think I still must stop the vehicle completely to shift in between 2 and 4
> WD? Please people, I'll appreciate all advices from you, especially from two
> guys I see all the time here on this news group: Mr L.W. (Bill) ------ and
> Mr. Mike Romain. Would be nice to meet you one day. Thank you very much.
> "L.W. (ßill) ------ III" <----------@***.net> wrote in message
> news:401FFE37.1E57AC11@***.net...
> > If you're lucky you have the Command-Trac, New Processor 231
> > (part-time) Transfer 2H, 4H, N, 4L :
> > http://www.off-road.com/jeep/tech/xfer/np231.html Part-time, means you
> > may not drive in the four wheel drive positions on pavement or where
> > traction is good.
> > If you have my luck you have the Selec-Trac, New Processor 242
> > (full-time) Transfer 2H, 4PT, 4FT, N, 4L:
> > http://www.off-road.com/jeep/tech/xfer/np242.html and:
> > http://www.wjjeeps.com/tcases.htm
> > God Bless America, ßill O|||||||O
> > mailto:-------------------- http://www.----------.com/

 

I wonder if the conversion would be as easy on my '89 XJ?


"Larry Greenwood" <greenwoo@misu.nodak.edu> wrote in message
news:bvgu4h$rtmj2$1@ID-126251.news.uni-berlin.de...
> I had it done on a 98 XJ. Purchased a jeep rebuilt tc and had the dealer
> remove the old one and install the new one. The only other parts you
will
> need are the selectrac bezel indicator (with fulltime icon) and replace
the
> underlying command trac steel guide for the shifting pattern with the
> selectrac guide. Two small parts.
>
> I ordered the plastic bezel shift indicator, but forgot about the shifting
> guide. I was able to modify the command trac guide to function as a
> selectrac shifting guide...not a big job. Had to do some filing.
>
> BTW, the total cost was $1,700. Which was probably less than I would
have
> spent if it was factory installed, because the selectrac option came with
so
> many more options that I didn't need.
>
> Larry Greenwood
>
>
>
> "PLB49" <plb49@aol.com> wrote in message
> news:20040131095140.28324.00001123@mb-m15.aol.com...
> > I have an 01 XJ which I really like. It has the Command-Trac part-time
> 4wd,
> > and I wonder if it would be possible/practical to swap in the Selec-Trac
> > system?
> >
> > TIA!
> > Paul Busse
> > http://scienceteacher.biz/General/JEEPphotos/index.htm
> >
>
>