Transfer Case Swap Info NP249->NP231 & NP242 - Page 41 - JeepForum.com

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post #601 of 3149 Old 08-26-2011, 08:19 PM
skimsurf
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ok, sounds like the way to go. i like being able to choose anyway, full time seems like it would put a lot of rare and tear on the jeep. so how would i know if the vc is locked up? is it something i can determine just from driving or is it a tear apart kinda deal? it will be a dd for now, then a toy later on. thanks for the input!

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post #602 of 3149 Old 08-27-2011, 04:56 AM
ny_driver
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If the front drive shaft is laying in the back end, you'll know for sure.

When you drive it, you'll know something is wrong and it will feel like the wheels are binding up in the front. Revove the drive shaft and it will be fine.

I just bought a 93' and a 95' Grand Cherokee Limited 5.2 liter....each with 172, 000 miles and the 249 works fine in both.
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post #603 of 3149 Old 08-27-2011, 10:02 AM
skimsurf
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k sounds good thanks!
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post #604 of 3149 Old 08-28-2011, 09:20 AM Thread Starter
JrMechanic
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Here's a 231 I just finished up for another member here. It was fully rebuilt along with a Rugged Ridge SYE, and a 1.55" input shaft:






Want to swap an NP242 or NP231 into your ZJ? Here's how:
http://www.jeepforum.com/forum/f13/n...pdated-685644/
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post #605 of 3149 Old 08-28-2011, 11:43 AM
ZJFABN
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Quote:
Originally Posted by JrMechanic View Post
Here's a 231 I just finished up for another member here. It was fully rebuilt along with a Rugged Ridge SYE, and a 1.55" input shaft:
Is that for a 4.0? The 249 inputs are around half that length. (on the 5.2 anyway)

My work, http://www.virtualjeepclub.com/showthread.php?70963-JW-Fabrication&highlight=Jwfabrication
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post #606 of 3149 Old 08-29-2011, 03:57 PM
ny_driver
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Found a 231 today in a 95' Grand Cherokee 4.0 and immediately pulled it.

It appears, using my "digital eye scale", to be a .750" input which will swap right into my AW4/4.0 project.

Going to pull the 242 from a 96' Orvis edition on Wednesday.

Both for $200.

I have 3 running 249s, 2 good(both V8s with 170K)/1 bad(4.0).

EDIT: actually have to swap the inputs due to gearcut, my other Jeep is early 93'......... it was inevitable.
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post #607 of 3149 Old 08-29-2011, 06:52 PM Thread Starter
JrMechanic
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Quote:
Originally Posted by ZJFABN View Post
Is that for a 4.0? The 249 inputs are around half that length. (on the 5.2 anyway)
It was built specifically for a '95 5.2. The 46RH utilizes a 1.55" input.

Want to swap an NP242 or NP231 into your ZJ? Here's how:
http://www.jeepforum.com/forum/f13/n...pdated-685644/
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post #608 of 3149 Old 08-30-2011, 05:07 PM
ZJFABN
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Quote:
Originally Posted by ny_driver View Post
Found a 231 today in a 95' Grand Cherokee 4.0 and immediately pulled it.

It appears, using my "digital eye scale", to be a .750" input which will swap right into my AW4/4.0 project.

Going to pull the 242 from a 96' Orvis edition on Wednesday.

Both for $200.

I have 3 running 249s, 2 good(both V8s with 170K)/1 bad(4.0).

EDIT: actually have to swap the inputs due to gearcut, my other Jeep is early 93'......... it was inevitable.
The gear cut only matters if you HAVE to swap the inputs due to them being the wrong length or the wrong spline count.

My work, http://www.virtualjeepclub.com/showthread.php?70963-JW-Fabrication&highlight=Jwfabrication
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post #609 of 3149 Old 08-30-2011, 05:08 PM
ZJFABN
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Quote:
Originally Posted by JrMechanic View Post
It was built specifically for a '95 5.2. The 46RH utilizes a 1.55" input.
Ahhhh, gotcha.

My work, http://www.virtualjeepclub.com/showthread.php?70963-JW-Fabrication&highlight=Jwfabrication
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post #610 of 3149 Old 08-30-2011, 05:39 PM
ny_driver
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So today I went and picked up the 231 I pulled from a 95' GC 4.0 yesterday for $79.50. It is .750 input which is what I need, but the manufacture date is January or June 1995.

Will this bolt right into my 93' AW4(.750 input), and fit correctly? If it will I just got a hell of a deal and a lucky-*** find.

EDIT: yes it will, thanks ZJFABN. I got lucky, will have to do more research before pulling cases for my V8s.
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post #611 of 3149 Old 08-31-2011, 07:42 AM
Decscorpion
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I am driving a 1995 jgc with a 5.2 motor (249j 1994) and the 231 is a 1996. What will have to be done? Switch input shaftes? and are the "gear cuts" remotly the same? I have been reading this writup witch is extreamly good!!! Please let me know if your need anything else from the tc for the questions THANKYOU!!!!

1. 1996 Jeep Grand Cherokee Laredo V8 5.2 l
2. 1993 Chevrolet K2500 V8 5.7 l
3. 1998 Jeep Wrangler 2.5 l
Thats all i got..
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post #612 of 3149 Old 08-31-2011, 09:39 AM
ZJFABN
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Quote:
Originally Posted by Decscorpion View Post
I am driving a 1995 jgc with a 5.2 motor (249j 1994) and the 231 is a 1996. What will have to be done? Switch input shaftes? and are the "gear cuts" remotly the same? I have been reading this writup witch is extreamly good!!! Please let me know if your need anything else from the tc for the questions THANKYOU!!!!
The gear cut ONLY matters if you are swapping the input shaft. You dont need to swap the input shaft if its the correct spline count and the correct length. Count the splines on the input shaft (the part that slides onto your transmission) It should be 23.

My work, http://www.virtualjeepclub.com/showthread.php?70963-JW-Fabrication&highlight=Jwfabrication
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post #613 of 3149 Old 08-31-2011, 09:54 AM
speedbucket
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Quote:
Originally Posted by ZJFABN View Post
The gear cut ONLY matters if you are swapping the input shaft. You dont need to swap the input shaft if its the correct spline count and the correct length. Count the splines on the input shaft (the part that slides onto your transmission) It should be 23.
he has a 94 with the 5.2 = 46RH=1.55 input = an input swap for any 242/231

http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
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post #614 of 3149 Old 08-31-2011, 12:53 PM
JordanZJ
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i found a 242 from an 88 xj, will i be able to swap this into my 98 zj with a 249 if i split the case and use the front half of the 249?
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post #615 of 3149 Old 08-31-2011, 04:35 PM
caligiuri87
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ok so i found a 242 for 136 bucks.
now i run a 249 with busted vc.
since vc is kinda expensive i go for this.
i have an 94 grand cherokee limited 5.2
not sure what year the 242 comes from but i have to check ONLY the shaft that goes to the tranny right??
should be 23 ????

also thinking of the shafts.
my front drive shaft has an 'extendable' part on it just befor e the diff.
does this matter etc??
and prob i will have to take that bezel to right?
since thats also 2wd i only have 4high and 4 low

also im gonna take the antenna and the left front blinkerlight

i have read the whole post and explains alot but just making sure incase i read something wrong

edit; in the door the plate says manufactured 93 but title says 94 and i just bought axles for the front all based on 94 so i think ill stick with 94 since that is everywhere except on my plate in the door.

Last edited by caligiuri87; 08-31-2011 at 04:55 PM. Reason: edit
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