NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > OEM Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Reply
 
Thread Tools Display Modes
  #1  
Old October 5th, 2020, 21:29
forrest831 forrest831 is offline
NAXJA Forum User
 
Join Date: Aug 2020
Location: Hollister, CA
Posts: 4
AX15 and NP231

So I pulled an AX15 4WD out of a pick-n-pull last week, but the NP231 was gone already. If the output gear and rear housing are all the same for the AX15, what kind of NP231 do I need? I have seen very conflicting information. My best guess based on my research is I need a short input gear NP231. Is that correct? I’ve read the Novak chart, but have read about 23 spline short input shafts in an AW4 NP231 too. Calgon take me away!!!
The only way I will know for sure is if I can find another AX15/NP231 in a junk yard but it took months to find the first one!
Any advice is greatly appreciated.
-Kevin
Reply With Quote
  #2  
Old October 5th, 2020, 21:56
jeep ride's Avatar
jeep ride jeep ride is offline
NAXJA Forum User
 
Join Date: Nov 2007
Location: 99 miles from nowhere
Posts: 643
Re: AX15 and NP231

Seems like 4cyl vs 6cyl t.case have different input spline count out spline are the same.
Reply With Quote
  #3  
Old October 8th, 2020, 05:53
89Mock 89Mock is online now
NAXJA Forum User
 
Join Date: Oct 2019
Location: Reno
Posts: 168
AX15 and NP231

Wouldn’t you just need any 23 spline NP231? Check a Chevy s10 since I think those had the same transfer case or some other ones. You can research the 6 pinion planetary gear to get a list of other vehicles with the NP231.
Reply With Quote
  #4  
Old October 8th, 2020, 06:41
ADshort ADshort is offline
NAXJA Forum User
 
Join Date: Oct 2020
Location: Carmel Valley
Posts: 4
Re: AX15 and NP231

I've got that setup on my '93. Any way to check externally? I do need to swap the clutch out so probably will have them pulled in the near future...
Reply With Quote
  #5  
Old October 8th, 2020, 19:57
lawsoncl lawsoncl is offline
NAXJA Forum User
 
Join Date: Jan 2006
Location: North Idaho
Posts: 5,346
Re: AX15 and NP231

Quote:
Originally Posted by 89Mock View Post
Wouldn’t you just need any 23 spline NP231? Check a Chevy s10 since I think those had the same transfer case or some other ones. You can research the 6 pinion planetary gear to get a list of other vehicles with the NP231.
Well, that's the rub. Sticking with Jeep, he needs a short input 23-spline that was behind an AX15. A 23-spline from behind an AW4 would have the long snout and might bottom out when bolted up. Other vehicles might have 23-spline but the wrong snout length or be clocked differently (YJs I think).

https://www.novak-adapt.com/knowledg...g-input-gears/
Reply With Quote
  #6  
Old October 9th, 2020, 01:10
forrest831 forrest831 is offline
NAXJA Forum User
 
Join Date: Aug 2020
Location: Hollister, CA
Posts: 4
Re: AX15 and NP231

Quote:
Originally Posted by ADshort View Post
I've got that setup on my '93. Any way to check externally? I do need to swap the clutch out so probably will have them pulled in the near future...
When you get to it, please take a picture with a ruler! It would be nice to know for sure what I'm looking for even if I need to purchase a new input gear.
Until then, I will keep looking for an AX15 that is still bolted to a NP231. There's one at the pick and throw in Rocklin, but that's a long drive to find that someone has already snatched it!
Thanks! -Kevin
Reply With Quote
  #7  
Old October 11th, 2020, 21:26
ADshort ADshort is offline
NAXJA Forum User
 
Join Date: Oct 2020
Location: Carmel Valley
Posts: 4
Re: AX15 and NP231

For sure. I saw the pick n pulls in moss landing and salinas had one earlier this year. I'm from the Monterey area. Also the 90's dakotas sometimes had the ax15 in them? Might be worth a search for those too locally. Cheers. Alex
Reply With Quote
  #8  
Old October 11th, 2020, 21:42
ADshort ADshort is offline
NAXJA Forum User
 
Join Date: Oct 2020
Location: Carmel Valley
Posts: 4
Re: AX15 and NP231

For sure. I saw the pick n pulls in moss landing and salinas had one earlier this year. I'm from the Monterey area. Also the 90's dakotas sometimes had the ax15 in them? Might be worth a search for those too locally. Cheers. Alex
Reply With Quote
  #9  
Old October 11th, 2020, 22:42
ADshort ADshort is offline
NAXJA Forum User
 
Join Date: Oct 2020
Location: Carmel Valley
Posts: 4
Re: AX15 and NP231

Quote:
Originally Posted by forrest831 View Post
When you get to it, please take a picture with a ruler! It would be nice to know for sure what I'm looking for even if I need to purchase a new input gear.
Until then, I will keep looking for an AX15 that is still bolted to a NP231. There's one at the pick and throw in Rocklin, but that's a long drive to find that someone has already snatched it!
Thanks! -Kevin
Hey this Dakota is at the moss landing pick n pull. The 5 speed listed for it in pretty sure would be an ax15 being the only manual dodge would put in the v8 dakotas. Might be worth a look. https://www.picknpull.com/vehicle_de...GL23Y3PS156258
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Please help - which NP231 for '95 AX15?? Thetastycat OEM Tech Discussion 3 May 9th, 2020 10:26
AX15 and NP231 CMNCHE NAC Classifieds 1 December 1st, 2017 15:27
93 xj 4.0 ax15 np231 Reichy MWC For Sale/Wanted Forum 4 June 23rd, 2014 14:03
AX15 & NP231 Gjeep Modified Tech Discussion 5 March 20th, 2010 23:45
NP231 from behind a AX15 xjbump NAC Classifieds 0 December 21st, 2009 14:23


All times are GMT -7. The time now is 05:48.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014