3Likes
Reply
 
LinkBack Thread Tools
post #1336 of Old 11-08-2012, 08:16 AM
mangle
Registered User
1996 ZJ 
 
Join Date: Dec 2007
Location: Cambridge
Posts: 17
Anyone know what size nuts are used to secure the TC to the trans?

This site lists the studs as M10x1.5 and the nuts as M8x1 (one, M8x1 is weird... two, they should obviously be the same thread).
http://www.factorychryslerparts.com/...category=20586

Have a better answer?

*edit* Looks like they're M10x1. Weird. Another post on this site mentions 3/8"-24.

mangle is offline  
post #1337 of Old 11-09-2012, 04:43 AM
Proph2010
Registered User
1994 ZJ 
 
Join Date: Oct 2011
Location: Martinsburg
Posts: 302
Im pretty sure they were all the same bolts and it was 9/16.
Proph2010 is offline  
post #1338 of Old 11-10-2012, 06:06 PM
zachjf
Registered User
1998 ZJ 
 
Join Date: Jun 2008
Location: Portland
Posts: 1,066
Has anyone here managed to take a WJ 242 that has the speedo sensor provision and just cut the hole out to use the ZJ speedo sensor? I was looking at a WJ 242J in the yard and it has the hole in the rear tail shaft housing but its got a small cast in section blocking the actual hole, the small retainer hole is even there just no actual speedo sensor hole.

Needs parts?
PM Kolak or kolak@kolakperformance.com
zachjf is offline  
post #1339 of Old 11-10-2012, 09:57 PM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Quote:
Originally Posted by zachjf View Post
Has anyone here managed to take a WJ 242 that has the speedo sensor provision and just cut the hole out to use the ZJ speedo sensor? I was looking at a WJ 242J in the yard and it has the hole in the rear tail shaft housing but its got a small cast in section blocking the actual hole, the small retainer hole is even there just no actual speedo sensor hole.
less work just to find a ZJ or XJ case
dnuccio is offline  
post #1340 of Old 11-11-2012, 03:30 PM
zachjf
Registered User
1998 ZJ 
 
Join Date: Jun 2008
Location: Portland
Posts: 1,066
Quote:
Originally Posted by dnuccio View Post
less work just to find a ZJ or XJ case
Trust me I'd rather find a case that I can just swap in like an XJ/ZJ case but the thing is around here newer jeeps never hit our U-Pull-It yards, they get cherry picked by the wreckers who extort an enormous amount of money for used Jeep parts. I called around my local wreckers and the best I could find was a 96 ZJ 242 case with 200k on it for $250! To get a nice 97 XJ case w/ 100k they want almost $400. Its either Craigslist, which again has nothing in terms of 96+ vehicles or making something else work.

If all it takes to make the newer 242 a bolt in swap is to remove the tailshaft housing, take a hole saw to the speedo sensor hole and tapping threads for the hold down bolt I'm all over it, it'll save me $300 since I can get the case for $100 and maybe 45 min worth of work

This is the 242 case I'm looking at;

Needs parts?
PM Kolak or kolak@kolakperformance.com
zachjf is offline  
post #1341 of Old 11-11-2012, 09:59 PM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
I don't think it's that simple. The Speedo gear is driven by a set of "splines" on the mainshaft. If the wj case doesn't have the provision for the sensor, it most likely doesn't have the required splines to turn the sensor. Sure you could swap the mainshaft, but by the time you buy a new shaft, its cheaper and less work to buy a whole zj or xj tcase and be done with it
dnuccio is offline  
post #1342 of Old 11-11-2012, 10:33 PM
zachjf
Registered User
1998 ZJ 
 
Join Date: Jun 2008
Location: Portland
Posts: 1,066
Quote:
Originally Posted by dnuccio View Post
I don't think it's that simple. The Speedo gear is driven by a set of "splines" on the mainshaft. If the wj case doesn't have the provision for the sensor, it most likely doesn't have the required splines to turn the sensor. Sure you could swap the mainshaft, but by the time you buy a new shaft, its cheaper and less work to buy a whole 242 tcase and be done with it
After looking at exploded diagrams and parts lists it appears that 4.0 WJ 242 cases do in fact have the speedo drive splines on the main shaft whereas 4.7 V8 242's do not, the 242 in the 4.7 uses a completely different mainshaft, tailshaft housing etc. I just sent emails off to a couple NP/NV parts suppliers to double check their listings of the mainshaft part number interchanges so I'll know for sure in a few days.

Needs parts?
PM Kolak or kolak@kolakperformance.com
zachjf is offline  
post #1343 of Old 11-12-2012, 07:50 AM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Quote:
Originally Posted by zachjf View Post
After looking at exploded diagrams and parts lists it appears that 4.0 WJ 242 cases do in fact have the speedo drive splines on the main shaft .
huh. I never would've guessed. Interesting
dnuccio is offline  
post #1344 of Old 11-12-2012, 07:23 PM
JakeC132
Registered User
1995 ZJ 
 
Join Date: Nov 2012
Location: Guilford
Posts: 51
I have a 95 zj 5.2 with a late 95 np249. just pulled it out this week to swap in a np231 from a 96 xj. they are apart right now and the gear cut is in fact the same. Do i have to also swap the input bearings or should they be the same?
JakeC132 is offline  
post #1345 of Old 11-12-2012, 08:36 PM
Georelle
Registered User
1993 ZJ 
 
Join Date: Dec 2011
Location: Sioux Falls
Posts: 19
I have been reading through this to get ready to swap out the 249 in my '93 5.2 ZJ. After reading through many many pages I think I have it mostly figured out. I am looking at a 231 out of a 93 XJ not far away that I will swap in then do the input shaft swap.

I must throw my humble opinion out here on the sensor and switch for the VIC indicator. There seems to be a lot of concern and time spent on this. Mine was beeping at me every 5 minutes with a "Service 4wd Switch" warning when I bought the Jeep a year ago. So I basically defeated it. Took about 15 - 20 minutes. I figured that if I need the VIC to tell me where I have the transfer case shifted I am in deep trouble anyway.

So here is a simple option to defeat the TC sensor at the VIC so you don't have to worry about what is going on at the TC sensor. The VIC just shows all four wheels lit up for me now. This diagram is if the VIC is already wired up for your 249. Be sure to tape off the end of the cut wires that will not be reconnected. And the one that is connected to ground can be cut long enough to put a wire lug on the end to screw to the metal behind the VIC, there was already a hole there for a metal screw on mine.
Attached Thumbnails
defeat_fwd_switch.jpg  

Last edited by Georelle; 11-12-2012 at 09:14 PM.
Georelle is offline  
post #1346 of Old 11-12-2012, 09:11 PM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Quote:
Originally Posted by Georelle View Post
I have been reading through this to get ready to swap out the 249 in my '93 5.2 ZJ. After reading through many many pages I think I have it mostly figured out. I am looking at a 231 out of a 93 XJ not far away that I will swap in then do the input shaft swap.

I must throw my humble opinion out here on the sensor and switch for the VIC indicator. There seems to be a lot of concern and time spent on this. Mine was beeping at me every 5 minutes with a "Service 4wd Switch" warning when I bought the Jeep a year ago. So I basically defeated it. Took about 15 - 20 minutes. I figured that if I need the VIC to tell me where I have the transfer case shifted I am in deep trouble anyway.

So here is a simple option to defeat the TC sensor at the VIC so you don't have to worry about what is going on at the TC sensor. The VIC just shows all four wheels lit up for me now. This diagram is if the VIC is already wired up for your 249.
easier to just disconnect the plug from the sensor, thats what i did
dnuccio is offline  
post #1347 of Old 11-12-2012, 09:12 PM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Quote:
Originally Posted by JakeC132 View Post
I have a 95 zj 5.2 with a late 95 np249. just pulled it out this week to swap in a np231 from a 96 xj. they are apart right now and the gear cut is in fact the same. Do i have to also swap the input bearings or should they be the same?
input bearings will be the same
dnuccio is offline  
post #1348 of Old 11-12-2012, 09:13 PM
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Quote:
Originally Posted by zachjf View Post
This is the 242 case I'm looking at;
is it just me, or does the tag say 242 WJ? i always thought they just said 242 J for jeep
dnuccio is offline  
post #1349 of Old 11-12-2012, 09:41 PM
zachjf
Registered User
1998 ZJ 
 
Join Date: Jun 2008
Location: Portland
Posts: 1,066
Quote:
Originally Posted by dnuccio View Post
is it just me, or does the tag say 242 WJ? i always thought they just said 242 J for jeep
I dont have a picture of the one I'm thinking of buying but here's one just like it.



I honestly dunno what the difference is I because I've seen WJ's that say both 242J and 242WJ, both 6 cylinder Laredo models 1 model year apart, 2001 & 2002.

Needs parts?
PM Kolak or kolak@kolakperformance.com
zachjf is offline  
post #1350 of Old 11-12-2012, 09:55 PM
Wulff
Registered User
 
Join Date: Oct 2012
Location: Mesa
Posts: 30
Quote:
Originally Posted by zachjf View Post

If all it takes to make the newer 242 a bolt in swap is to remove the tailshaft housing, take a hole saw to the speedo sensor hole and tapping threads for the hold down bolt I'm all over it, it'll save me $300 since I can get the case for $100 and maybe 45 min worth of work

This is the 242 case I'm looking at;
This is not as easy as it seems, I am a Journeyman toolmaker and this casting would need more than a simple hole saw, it would have to be set up in a vertical mill and using a boring head machined out. The tricky part would be trying to find out the exact location so the gears mesh properly. Second the sealing wouldn't be there and it would leak oil like crazy.
Wulff is offline  
Reply


Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
Jeephreakiwon
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
NP249 to NV249 Transfer case swap CDRFunkmeyer ZJ Grand Cherokee Forum 8 10-30-2009 12:39 PM
NP249 T-case dying & want to swap to a NP242 or NP231 IMin4Low ZJ Grand Cherokee Forum 15 10-02-2009 04:01 AM
UK NP249 Transfer Case Swap (+ PICS) UK Cherry ZJ Grand Cherokee Forum 4 07-12-2009 06:09 AM
NP231 vs. NP242 vs. NP249 offroader156 ZJ Grand Cherokee Forum 27 03-25-2007 06:17 PM
NP249 to NP242 SWAP tb007 ZJ Grand Cherokee Forum 2 11-30-2004 11:50 AM

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
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome