Transfer Case Swap Info NP249->NP231 & NP242 - Page 128 - JeepForum.com

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post #1906 of 3301 Old 12-15-2013, 03:03 PM
Maverick1998
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This thread says swap Info for 249/231/242 tcase?

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post #1907 of 3301 Old 12-15-2013, 03:06 PM
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Differences between the 231 and 242 are as follows. The 242 gives you a full time and part time 4wd option, 231 only has part time. There is a bolt on SYE kit available for a 231, not the 242. You would have to install a "hack and tap" Works the same just more work and not bolt on. 242 is the most common swap.

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post #1908 of 3301 Old 12-15-2013, 04:06 PM
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Quote:
Originally Posted by Maverick1998 View Post
This thread says swap Info for 249/231/242 tcase?
The title is "Transfer Case Swap Info NP249->NP231 & NP242". This refers to mainly swap information going from NP249 to NP231 OR NP242. There are a TON of threads about advantages/disadvantages to your other question. I highly suggest doing the research and deciding for yourself which would benefit you and your goals

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post #1909 of 3301 Old 12-16-2013, 02:26 PM
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Quote:
Originally Posted by Maverick1998 View Post
This thread says swap Info for 249/231/242 tcase?
I didn't intend to come off pissy.. heres a lil transfer comparison thread that should help you with the decision which to install.

http://www.jeepforum.com/forum/f13/2...e-info-556103/

Most people in our area prefer the 242 for road vehicles, and the 231 for mostly wheelin rigs.
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post #1910 of 3301 Old 12-30-2013, 12:56 PM
CaPtAiNgOoFy
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Got a question guys first great write up! I found a 1998 zj np242 for a good price I want to put it into my 1993 zj. Will it fit after I do the front case swap that was described? Or does it require more work?
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post #1911 of 3301 Old 01-07-2014, 10:34 AM
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Originally Posted by CaPtAiNgOoFy View Post
Got a question guys first great write up! I found a 1998 zj np242 for a good price I want to put it into my 1993 zj. Will it fit after I do the front case swap that was described? Or does it require more work?
You haven't gotten a response because you didn't give us the details of what's currently in your 93.. engine/transfer?

The 98 242 will have an .840" 23 spline input. Check this against what the first post in this thread lists as installed in your 93.

If you have a NP249 then yes.. you can do a case half modification.
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post #1912 of 3301 Old 01-08-2014, 11:52 AM
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Originally Posted by OverlandZJ View Post
You haven't gotten a response because you didn't give us the details of what's currently in your 93.. engine/transfer?

The 98 242 will have an .840" 23 spline input. Check this against what the first post in this thread lists as installed in your 93.

If you have a NP249 then yes.. you can do a case half modification.
Sorry about that. I got a 4.0. I do believe I have the np249. I have 4hi neutral and 4 lo . Was told by mechanic that the VC needs to be replaced and quoted me 700 for the job. Says the part cost 450. But was wondering if I should go to the junkyard and grab a np242 and bolt that up.
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post #1913 of 3301 Old 01-08-2014, 02:03 PM
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Yes, that would be a 249.

You can do better on the new Viscous Coupler..

http://www.ebay.com/sch/i.html?_trks...at=0&_from=R40

If you decide to go the 242 route you'd be well advised that a new rear driveshaft, shifter, linkage and bezel may also be acquired.

Your not far from me.. PM'd you.
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post #1914 of 3301 Old 01-22-2014, 10:47 AM
CaPtAiNgOoFy
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Originally Posted by OverlandZJ View Post
Yes, that would be a 249.

You can do better on the new Viscous Coupler..

http://www.ebay.com/sch/i.html?_trks...at=0&_from=R40

If you decide to go the 242 route you'd be well advised that a new rear driveshaft, shifter, linkage and bezel may also be acquired.

Your not far from me.. PM'd you.
So I found a 93 np242 from the junk yard, was wondering if I get that one if I could just bolt that one up? I need to get a different rear driveshaft?
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post #1915 of 3301 Old 01-22-2014, 11:08 AM
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Hit or miss, i have done 2 so far and had no driveshaft issues. SOme guys do though, really dont know why. BTW those ebay VC's are worthless. I know a number of guys that got less than a year out of them before they took a dump. Dont waste your money, not worth it or the time it takes to install it. Go with a 242 or 231

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post #1916 of 3301 Old 01-22-2014, 01:05 PM
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Originally Posted by CaPtAiNgOoFy View Post
So I found a 93 np242 from the junk yard, was wondering if I get that one if I could just bolt that one up? I need to get a different rear driveshaft?
The info you seek is in the first post on page 1. We cant answer your question if it's a bolt in.. you need to ID the transmission you have. AW-4 or 42re.. both have differing input lengths. 93 ZJ's had two auto transmission options dependent on build date.

However.. since you have the 249 currently you have the option of the front case half conversion, enabling you to use any ZJ/XJ NP242 you find.
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post #1917 of 3301 Old 01-22-2014, 01:08 PM
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None of that has anything to do with driveshaft length

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post #1918 of 3301 Old 01-22-2014, 01:16 PM
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Originally Posted by Platinum5nine View Post
None of that has anything to do with driveshaft length
Which is why I didn't touch the driveshaft length in my reply.. I don't have the experience to address it. I'm running an SYE.

I was responding to the donor he found.
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post #1919 of 3301 Old 01-22-2014, 01:44 PM
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AFAIK there is no direct bolt in 242 for the 93-95 ZJ period, it has to be built. I may be wrong, maybe he found one with the right input shaft length. Id love to see a picture of the input shaft on the 242 he picked up as well as the 249 when he pulls it out. Would be great if he found something new.

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post #1920 of 3301 Old 01-22-2014, 01:53 PM
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Quote:
Originally Posted by Platinum5nine View Post
AFAIK there is no direct bolt in 242 for the 93-95 ZJ period, it has to be built. I may be wrong, maybe he found one with the right input shaft length. Id love to see a picture of the input shaft on the 242 he picked up as well as the 249 when he pulls it out. Would be great if he found something new.
For a 93 - 95 4.0, one from another 4.0 will bolt right in (yes, some 4.0s got 249s, especially in Limiteds and Orvises). It's the 93 - 95 V8s that will always need the input swap, unless the medium (.840") input (used in 42REs) will work in a 46RH (not sure if it will, but it might). All 46RH setups used the 1.55" long input stock, rather than the medium or short ones.
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