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
  #16  
Old June 19th, 2016, 08:37
Ecomike's Avatar
Ecomike Ecomike is offline
NAXJA# 2091
 
Join Date: Dec 2006
Location: MilkyWay Galaxy
Posts: 15,064
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

Quote:
Originally Posted by kastein View Post
The factory never put an AX5 behind a 4.0, so you are simply swapping an AX15 in in place of a different AX15. Any 94-99 AX15 from an XJ or Dakota will fit if you swap the bellhousing and shift lever+turret (on a dakota ax15) or simply drop it in (xj donor). You can go as early as 92 if you don't mind swapping the input bearing retainer and as early as 89.5 if you don't mind swapping the pilot bearing to a 15mm bore one.
I have a related question in a new thread:

I could really use your timely advise on this one please (BA-10 transmission versus AX-15?.

Thanks

http://www.naxja.org/forum/showthread.php?t=1130217
__________________
Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
Reply With Quote
  #17  
Old June 20th, 2016, 08:21
macidgit's Avatar
macidgit macidgit is offline
NAXJA Member
 
Join Date: Nov 2008
Location: Cincinnati, OH
Posts: 41
Thumbs up Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

Thanks very much for the help! Being an AX15 will make it alot easier. I thought I ID'd it correctly per the shop manual as an AX5, but not too surprised I was mistaken. :-)

Quote:
Originally Posted by kastein View Post
The factory never put an AX5 behind a 4.0, so you are simply swapping an AX15 in in place of a different AX15. Any 94-99 AX15 from an XJ or Dakota will fit if you swap the bellhousing and shift lever+turret (on a dakota ax15) or simply drop it in (xj donor). You can go as early as 92 if you don't mind swapping the input bearing retainer and as early as 89.5 if you don't mind swapping the pilot bearing to a 15mm bore one.
__________________
Steve C., Cincinnati, Ohio
~ Member #2896 ~
2000 Limited, ATK 4.7 Stroker, AW4, D30/Ford 8.8, 4.10's, e-locker /trac-lok, 265/75-16 Duratracs, 4.5" RE w/ Bilsteins, C-Rok bumpers F&R
Reply With Quote
  #18  
Old June 21st, 2016, 19:53
kastein's Avatar
kastein kastein is offline
NAXJA Member
 
Join Date: Jul 2009
Location: Central MA - keep going till the road turns to dirt, then listen for banjos
Posts: 14,035
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

They look very similar inside and out, the easiest way to tell them apart is the 4/5 are 21 spline and the 15 is 23 spline. The bolt pattern where the bellhousing bolts on is also extremely distinct but it's like that judge's statement on porn vs art, I can't give you a description of it but I know it when I see it.
__________________
My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.
Reply With Quote
  #19  
Old January 3rd, 2018, 12:05
hfdeop71 hfdeop71 is offline
NAXJA Forum User
 
Join Date: Jan 2018
Location: Tomball
Posts: 2
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

I need some help in regards to converting from an internal, to an external slave cylinder. I have 89YJ with a 4.2L engine. I upgraded from the dreaded BA10 to a 91 AX15. I am already on my 3rd internal slave cylinder replacement and am considering converting to the external slave cylinder modification that was used in the latter model YJ’s. The input shaft on my current AX15 is 0.059”. I know that the latter input shafts are 0.750”. To change out to the new bearing retainer that will accommodate new style fork and throw out bearing assembly, do I need to replace the input shaft to the latter model shaft, or can I keep my current shaft? Is there any difference in these shafts beyond the tip diameter size of the input shaft. Any help would be appreciated, as I believe I have the rest of the m chanics of the conversion figures out.
Reply With Quote
  #20  
Old January 5th, 2018, 18:38
kastein's Avatar
kastein kastein is offline
NAXJA Member
 
Join Date: Jul 2009
Location: Central MA - keep going till the road turns to dirt, then listen for banjos
Posts: 14,035
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

There is zero real difference between the shafts aside from pilot tip diameter. You can run whichever is in your trans already as long as you get the right pilot bearing to match it and your crank pocket diameter.

The pilot tip changed 91- (0.591", actually exactly 15mm, the size is because it was intended to replace the BA-10/5 Peugeot trans that would have been designed in metric) to 92+ (when Chrysler seems to have standardized most of their pilot bearing tips at 0.75".) I wish it lined up with the internal vs external slave split from 93 to 94, but, well, it doesn't.
__________________
My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.
Reply With Quote
  #21  
Old January 5th, 2018, 19:04
David_Bricker's Avatar
David_Bricker David_Bricker is offline
PSR Fire Marshall
 
Join Date: Nov 2008
Location: Upstate NY-live; Death Valley-play
Posts: 3,817
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

There is also the outer diameter to consider, depending on the crank being used.

The 4.2L crank was different from the 4.0L crank. This comes into play when doing a stroker on a 4.0L motor, which uses the 4.2L crank. I messed with all this when I did my stroker. Now, where are my notes.....

From Phoenix Friction Products
https://www.phoenixfriction.com/
877.570.5630

4.2L Engine
ID: 0.580”
OD: 1.056”
P/N PB122

1995 Cherokee 4.0L Engine
ID: 0.755”
OD: 1.001”
P/N PB207

Used for me:
ID: 0.755”
OD: 1.055”
P/N PB 117

4.2 L Crank used a bushing (or bearing) that is 1.056” diameter
4.0 L Crank uses bushing that is 1.001” in diameter
Early AX-15 transmissions have a input shaft that is 0.580” in diameter
Later (1992?) AX-15 transmissions have an input shaft that is 0.755” in diameter

So, stroker in a later model AX-15 would use PB 117. Stroker in an earlier model AX-15 would use PB 122.


Hopefully, this helps, and doesn't just make it more confusing.




David Bricker / SYR
__________________
Gomer - '95 XJ, 2 dr. 4.6L Russ Pottenger Stroker; Novak TJ AX-15; Black Box 2.72:1 + 241OR 4:1; RockJock 60 Front, hydro assist, Hi-steer; D60 trussed and shaved rear; 4.56 ARB Front and Rear; Black Magic discs, Bilstein 7100s front and rear; 35s; PRP seats; Warn PowerPlant winch, hybrid cage. Annd, the Faux Dorkle is gone.
National Treasurer 2013-2019
Not a member? Become one today, and help support YOUR club.
Reply With Quote
  #22  
Old January 5th, 2018, 19:05
David_Bricker's Avatar
David_Bricker David_Bricker is offline
PSR Fire Marshall
 
Join Date: Nov 2008
Location: Upstate NY-live; Death Valley-play
Posts: 3,817
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

Annnd, I'm guessing Ken has already covered this previously in this thread, so this is probably old news.

David Bricker / SYR
__________________
Gomer - '95 XJ, 2 dr. 4.6L Russ Pottenger Stroker; Novak TJ AX-15; Black Box 2.72:1 + 241OR 4:1; RockJock 60 Front, hydro assist, Hi-steer; D60 trussed and shaved rear; 4.56 ARB Front and Rear; Black Magic discs, Bilstein 7100s front and rear; 35s; PRP seats; Warn PowerPlant winch, hybrid cage. Annd, the Faux Dorkle is gone.
National Treasurer 2013-2019
Not a member? Become one today, and help support YOUR club.
Reply With Quote
  #23  
Old January 9th, 2018, 08:20
hfdeop71 hfdeop71 is offline
NAXJA Forum User
 
Join Date: Jan 2018
Location: Tomball
Posts: 2
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

Thanks guys!! I ordered a new bearing retainer cover and determined that there was no difference. I’ll be glad to finally get this issue of having a problematic internal slave cylinder set up resolved, as I’ve beckne entirely too proficient st pulling the transmission on my YJ.

It is Interesting how a lot of these issues weren’t resolved congruent to corresponding year models. I suppose this was due to the financial issues of AMC at the time of the CJ/YJ conversion. They were indeed practicing field engineering with a lot of the enhancements that were attempted on the YJ platform which was intended to make the jeep a commercial staple as opposed to a reworked military platform.

No one ever buys an old jeep with that notion of not having to work on it!!
Reply With Quote
  #24  
Old January 11th, 2018, 09:57
Vernons's Avatar
Vernons Vernons is offline
NAXJA Forum User
 
Join Date: Dec 2017
Location: Alabama
Posts: 2
Re: Parts Need Going from AX5 >> to >> AX15 ??

Quote:
Originally Posted by macidgit View Post
I have a 1997 AX5 equipped 4.0 XJ with NP231 xfer case. The AX5 has developed the problem of not staying in 1st gear.

The transmission shop won't rebuild it, and wants $1500 to swap out with low-miles used AX5.

I'd prefer to replace the AX5 with an AX15 on my own.

From what I can tell in this thread, I would need:
  1. Used AX15
  2. AX15 compatible bellhousing
  3. Appropriately-sized pilot bearing
  4. New clutch, pressure plate and throwout bearing
Used AX15

Does anyone know if there are any other other unique-to-AX15 parts I would need?
This may be a long shot. I have had several manual transmissions that would jump out of gear. Last month my Tacoma was doing this. I pulled the gear shifter and the little bushing that the shifter sits on was all crumbled up. I replaced that and problem solved. Hope this helps
Reply With Quote
  #25  
Old January 13th, 2018, 13:20
kastein's Avatar
kastein kastein is offline
NAXJA Member
 
Join Date: Jul 2009
Location: Central MA - keep going till the road turns to dirt, then listen for banjos
Posts: 14,035
Re: Everything you ever wanted to know about the AX15 (and some about the AX5)

Quote:
Originally Posted by David_Bricker View Post
There is also the outer diameter to consider, depending on the crank being used.

The 4.2L crank was different from the 4.0L crank. This comes into play when doing a stroker on a 4.0L motor, which uses the 4.2L crank. I messed with all this when I did my stroker. Now, where are my notes.....

From Phoenix Friction Products
https://www.phoenixfriction.com/
877.570.5630

4.2L Engine
ID: 0.580”
OD: 1.056”
P/N PB122

1995 Cherokee 4.0L Engine
ID: 0.755”
OD: 1.001”
P/N PB207

Used for me:
ID: 0.755”
OD: 1.055”
P/N PB 117

4.2 L Crank used a bushing (or bearing) that is 1.056” diameter
4.0 L Crank uses bushing that is 1.001” in diameter
Early AX-15 transmissions have a input shaft that is 0.580” in diameter
Later (1992?) AX-15 transmissions have an input shaft that is 0.755” in diameter

So, stroker in a later model AX-15 would use PB 117. Stroker in an earlier model AX-15 would use PB 122.


Hopefully, this helps, and doesn't just make it more confusing.




David Bricker / SYR
I covered some of this but not all.

For what it's worth, at least on HO stuff, I've never ever had to worry about the 1 vs 1.055 pilot bore, because the fc69907 pilot bearing for a 92-up 0.75 pilot tip fits into the larger 1.816" pilot bore that is designed for the AW4 converter snout. 90XJay also used this route for his 90 RENIX he put a late model AX15 into, but no idea what year the crank was.

I don't know if 258 cranks have the right shape either... But it occurs to me that there's one sitting in my closet so I'll check it in a moment.

I don't know of a pilot bearing with a 1.816 OD and small pilot tip (0.59 I think?) Though.

Edit: can't find my caliper anywhere, but using a tape measure for a "looks good from my house" precision machining measurement, I come up with 1-13/16” which is pretty close to 1.816. so I'm pretty sure that would fit an fc69907 to take a 92+ AX15 as well. No idea on 0.59" x 1.816" pilot bearings, you're on your own for that...
__________________
My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.

Last edited by kastein; January 13th, 2018 at 13:33.
Reply With Quote
  #26  
Old January 15th, 2018, 23:30
Johnnie Walker's Avatar
Johnnie Walker Johnnie Walker is offline
Piece of Fish!
 
Join Date: Dec 2008
Location: Califailia
Posts: 10,709
Everything you ever wanted to know about the AX15 (and some about the AX5)

So, slighty OT, maybe, doing a 4wd swap in my MJ. MJ is renix, and has pos BA10/5.
Will be external slave, does 94-96? Or later slave master matter? Is it just pedal based or?
Thanks.
__________________
blondjoncherokee: chris was wondering how much it would cost for you to give him 4" ?
RTFM: Not just an acronym, it's the LAW!
nightfoam: Uh, 5.5 million was way too much. You are the worst jew ever
blistovmhz: Goddamn Canada. We're all rapists. Don't come here.
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
WANTED: 4x4 AX15... socalkid13 SoCal For Sale 0 August 19th, 2014 23:42
AX15 wanted midtennjeeperz SEC For Sale / Wanted Forum 4 November 15th, 2009 12:28
WANTED - AX15 !!!! The glory wagon Wanted: Private Party Only 1 June 20th, 2006 14:25


All times are GMT -7. The time now is 00:19.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014