Daniel Loudin

SO MY TRANSFER CASE CRACKED.. 89 XJ 4.0L AW4 NP231 (1996)D30 FRONT.. CHR 8.25 REAR. Can get a 241d from 1990 dodge D100. Will that work/bolt with aw4. Or what mods need to be done?? Can someone help

andrewmp6

No the t case is the wrong side drop for what you need,Find a used np231 from another jeep xj it will bolt right in.

cruiser54

Not if it's 91 or later.......

21 spline through 1990. 23 spline later.

Daniel Loudin

Ok cool. I found a np242 with part time and full time. Would like to put that in but i dont know if linkage will work right. Cruiser its the same 89xj ive been building. But cash is tight. I have the 241d and 242(in 97xj) to use. Im guessing 242 would be better option? And 242 has like a 2:1 low range right?

cruiser54

231 linkage will work. You got a 21 spline 242?

Daniel Loudin

Not sure if 21 or 23. Havent got to it to count it. I was just wondering about where it has full time/ part time and mine is 2h 4h 4l if that would pose a problem? And what is comparison in low range power of the 2. I believe 231 is like a 2.72:1 low correct?

JPXJMOAB

You will just need to adjust linkage for the 242. It's no easy quick thing to adjust it, just adjust til you get it right. Otherwise look Into the boostwerks linkage. Make sure it's 21 spline as others have said.

http://www.boostwerksengineering.com...age-_p_27.html

Photontraveler

I just did this swap on the same vehicle . The 242 is awesome in the snow in 4 wheel full time.Very stable on the highway. Honestly I wasn't impressed with it until I had to drive in snow. In deep snow you will still need 4 Wheel full. The only trouble I had was the transfer case shift rod kept bending. I had to install a cable shifter on the transfer case.

andrewmp6

Cruiser you mean 94 when they changed the dodge truck body and the front drop on it.The old leaf spring trucks are passenger side drop while the 94 and newer are the driver side drop.

cruiser54

I'm talking strictly Jeep.

Daniel Loudin

Well id like to stay strictly Jeep. So i got a 242j from a 94xj. Seems to be the same other than speed sensor and no vacuum port. But i have 96 axle so its useless. Do i just install as i would 231? I have the drivetrain from the 94 tcase came from

Thexjfiles

If your trans is from 89....its got 21 splines and you need an older 242 that has 21 spline input shaft/gear.


It does not matter at all what axles you have.

Daniel Loudin

So the 242 is a 23 spline and of course my 89 is a 21. Now what do i do from here? Change shaft? How do I do that

Daniel Loudin

Im on a limited budget and the 242 was free.

Jeep Driver

I keep say'n......free is expensive.