Transfer Case Swap Info NP249->NP231 & NP242 - Page 26 - JeepForum.com
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Unread 03-30-2011, 11:06 AM   #376
PlatinumNiner
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The 96-98 242 is a DIRECT swap for the 96-98 249 and no driveshaft mods are needed. I think people really need to start reading. This thread is great but it's full of useless questions that were already answered 15 times over.

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Unread 03-30-2011, 12:14 PM   #377
solomon8718
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Well, the OP did give specific years but didn't explicitly say that compatibility included the five nines. It also would have been good for the OP to make note about the shift lever incompatibility.
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Unread 03-30-2011, 12:50 PM   #378
Candymancan
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Quote:
Originally Posted by PlatinumNiner View Post
The 96-98 242 is a DIRECT swap for the 96-98 249 and no driveshaft mods are needed. I think people really need to start reading. This thread is great but it's full of useless questions that were already answered 15 times over.


Yea no one has said anything about a 5.9 tho, i have seen some direct swap's with them but the drive shaft were also close to bottoming out against the slipyoke on the TC. Doesnt sound too safe too me specially if you are carryng a heavy load. Im sure to be safe you have to shorten the drive shaft.

I haul really heavy loads in my 5.9 in the trunk sometimes close to the max limit. Around 800 pounds, if the 242 has a longer slip yoke then that would shove the Drive shaft into my TC im thinking.
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Unread 03-30-2011, 02:27 PM   #379
solomon8718
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Quote:
Originally Posted by Candymancan View Post
Yea no one has said anything abo*******[/PHP]ut a 5.9 tho, i have seen some direct swap's with them but the drive shaft were also close to bottoming out against the slipyoke on the TC. Doesnt sound too safe too me specially if you are carryng a heavy load. Im sure to be safe you have to shorten the drive shaft.

I haul really heavy loads in my 5.9 in the trunk sometimes close to the max limit. Around 800 pounds, if the 242 has a longer slip yoke then that would shove the Drive shaft into my TC im thinking.
wouldnt it hit the bump stops before that happened?
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Unread 03-30-2011, 08:43 PM   #380
denso
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thank-you very much!

[QUOTE=PlatinumNiner;11270713]The 96-98 242 is a DIRECT swap for the 96-98 249 and no driveshaft mods are needed. I think people really need to start reading. This thread is great but it's full of useless questions that were already answered 15 times over.

thanx,thats all I wanted to know all along!
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Unread 03-30-2011, 09:21 PM   #381
PlatinumNiner
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Quote:
Originally Posted by Candymancan View Post
Yea no one has said anything about a 5.9 tho, i have seen some direct swap's with them but the drive shaft were also close to bottoming out against the slipyoke on the TC. Doesnt sound too safe too me specially if you are carryng a heavy load. Im sure to be safe you have to shorten the drive shaft.

I haul really heavy loads in my 5.9 in the trunk sometimes close to the max limit. Around 800 pounds, if the 242 has a longer slip yoke then that would shove the Drive shaft into my TC im thinking.
249 behind the 5.2 and 5.9 are no different. When your ZJ squate the shafy gets longer. When it lifts the shaft gets shorter. Your heavy load actually helps the shaft not bottom out. I did it on my 5.9 and i have about 3/4" before the shaft bottoms out. The shaft slips 1/4" if that. You have nothing to worry about. If your worried, cut 1/2" off the driveshaft yoke.
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Unread 03-31-2011, 05:17 AM   #382
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So i have it backwords ? Heavy loads pull the shaft out ? I thought it pushes the shaft in, and a lift pulls the shaft out ?

What happens with 800 pounds when you hit a bump on the road. The Jeep does swing up and down quiet a bit from that, i watch it through the rear mirror Its kinda funny to watch. I know i can shorten the driven shaft, but cutting it on the yoke end i dunno would that cause the shaft to be unbalenced? I would think cutting the shaft the real way and then have it balenced would be better. You know i saw a guy who cut the yoke end of the transfercase, i wonderd how that actually helps because wouldnt the drive shaft yoke still be too long ? Gah so confusing.

Thanks for the vote of confidence, not having to cut anything saves me $80, just worried that i should, i read a story once where a guy didnt do it and it bashed his TC and caused all kinds of vibration problems after that


Well hopefully the guy on this forum comes through for me, and sells me his 242, he lives 30m away and wanted $250 for it with the drive shaft, bezel and linkage. I offerd him $200 because i dont need the drive shaft and im cash short.. I have to pay a shop $200 to swap it for me because im not too confident in myself yet to do it myself lol. I should probably do it myself tho because the $200 i can spend on a Jack and stands and tools that i can re-use down the road..
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Unread 03-31-2011, 08:03 AM   #383
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I have a 98 5.9 and did the swap, but I also put an SYE kit on mine. I had to cut the shift shaft 1" and reweld along with putting a slight bend so it would no longer hit the cross linkage shaft. I also replaced both drive shafts front and rear with new double cardon types. The only problem I was having was the transfer case was popping out of 4WLo bu that was before I odofied the linkage. Haven't had it out in extreme conditions since. Hope to test it in a few weeks. I use a 89' 231 TC and the input shaft was the same!
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Unread 03-31-2011, 08:19 AM   #384
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The shift shaft ?
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Unread 03-31-2011, 09:59 AM   #385
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What I called the shift shaft is the linkage shaft. Has knobs on both ends and connects to the TC palte the the upper shift linkage. Sorry about that. Maybe I will take some photos later and post.
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Unread 03-31-2011, 11:51 AM   #386
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Candyman you will not throw off balance by cutting a hair off the yoke on the driveshaft. You could probably cut the same 1" ouf of the tube, weld the end back on, and drive away with out ever having a vibration.
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Unread 03-31-2011, 01:12 PM   #387
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hello from texas

Hi everyone, my name is bryan, most who know me call me Rowdie..

I just bought another Grand Cherokee. i have had several old jeeps, CJ to Cherokee, this is my first Grand. I purchased a 5.9 limited to use as a tow behind for my motor home.

Its had a hard life, but I will get it put back together soon. Looking for a front drive shaft for it. Among a few other thigns. Also, found this site while reserching Transfer cases. I would like to be able to pull this thing with all four wheels flat on the ground. Not sure I can do that with out alot of mods witht he stock TC. I have the NV 249 ( I think ) and after reading I beleive I would like to go with the NP249 Any thoughts?

Thanks everyone, and be safe

Rowdie
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Unread 03-31-2011, 01:15 PM   #388
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Unread 03-31-2011, 01:49 PM   #389
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^ LOL yea my thoughts exactly

Rowdie, read your manual. You can tow with all 4 wheels on the ground perfectly safe with the 249. Dont quote me but i believe all you gota do is put the t-case in neutral Like i said though read your manual and it will tell you all about it.
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Unread 03-31-2011, 02:15 PM   #390
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Quote:
Originally Posted by PlatinumNiner View Post
The 96-98 242 is a DIRECT swap for the 96-98 249 and no driveshaft mods are needed. I think people really need to start reading. This thread is great but it's full of useless questions that were already answered 15 times over.
This is false. You need to shorten the rear drive shaft approximately 1.5" whenever you go from an internal slip yoke to the external style.

I don't recommend cutting the slip yoke or the transfer case output.
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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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