249>231 tomorrow. ?s not in the write up - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > 249>231 tomorrow. ?s not in the write up

Nitro Gear Packages Now Available at Rockridge 4wdG2 Disc Brake Conversion Kit for Jeep Wrangler YJ TJ LJ ChSPARTAN LOCKERS are on sale BIG TIME at ROCKRIDGE 4WD!

Reply
Unread 10-11-2013, 05:23 PM   #1
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
249>231 tomorrow. ?s not in the write up

I have a 96 gc with the 249, and the 231 is from a 98. Will it just bolt directly up with no modifications aside from adjusting the linkage? I read that the drive shafts are different lengths. Will I need the driveshaft? I've read over the write up several times and the info confused me. Pretty much will I need anything other than the transfer case?

__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-11-2013, 07:16 PM   #2
98GCLimited
Registered User
1998 ZJ 
 
Join Date: Jun 2009
Location: LHC, AZ
Posts: 480
What is your 231 from I know its a 98 but from a ZJ XJ or TJ? If its external slip yoke you might need to shorten your rear drive shaft a little bit. If the 231 has a .840" 23 spline input it will swap in fine without swapping inputs from 249 to 231. Other than that probably swap your speedo sensor from the 249 to the 231 not sure since I dont have the case sitting in front of me or a picture.

I had to shorten/adjust my adjustable linkage shaft about half inch for my 249 linkage to operate the 231 in all gear modes properly, my 231 was from a 93-95 ZJ and had internal slip yoke and didnt require any driveshaft changes. Pretty easy swap.

Might want to replace your transmission output seal while you have the case out but thats up to you.
98GCLimited is offline   Reply With Quote
Unread 10-11-2013, 09:58 PM   #3
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
Great info. Its from a 98 ZJ. Thanks so much for your reply. I have to have this fixed by monday or i could lose my job, so you dont know how much i appreciate it.
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-11-2013, 11:13 PM   #4
xcaliber81
Registered User
1994 ZJ 
 
Join Date: Jul 2012
Location: Prince George, B.C
Posts: 2,801
Quote:
Originally Posted by Sextiva View Post
I have to have this fixed by monday or i could lose my job.
You know you drive a zj when.......
__________________
Im indian my elders name is Jeep Grand Cherokee, I mean Chief Grand Cherokee. Quoted from Peter Griffin.
xcaliber81 is offline   Reply With Quote
Unread 10-11-2013, 11:23 PM   #5
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
You know you drive a Zj when when you did upper and lower ball joints, tie rod ends, front shocks, steering stabilizer, new drivers side axle, two new tires and both motor mounts last weekend. Then Monday your transfer case breaks due to viscous coupler failure.
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-12-2013, 06:23 AM   #6
xcaliber81
Registered User
1994 ZJ 
 
Join Date: Jul 2012
Location: Prince George, B.C
Posts: 2,801
So your tcase actually broke or you vc just failed?
__________________
Im indian my elders name is Jeep Grand Cherokee, I mean Chief Grand Cherokee. Quoted from Peter Griffin.
xcaliber81 is offline   Reply With Quote
Unread 10-12-2013, 07:11 AM   #7
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
V C just failed. It's really bad though. When I let off the gas it's like the brakes are on. My front end pops and vibrates coming to a stop and it hunkers downs like I'm launching at the drag strip. Then when I take off it pops, lifts up, pops, lifts some more. It drags my tires, they're screeching down the road, and you don't want me to get started on parking lots.
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-12-2013, 07:41 AM   #8
JAMS201075
Registered User
1993 ZJ 
 
Join Date: Oct 2012
Location: Roanoke, VA
Posts: 89
It's always something with these ZJ's. Gotta love em though. It almost sounds like those 2 new tires you put on are a different brand or there is a little difference in size than the other 2 that are older. Just a thought. I'm running 35's with the 249 and checking tires has become a habit every 3-4 days. Lol
__________________
Jason
JAMS201075 is offline   Reply With Quote
Unread 10-12-2013, 07:51 AM   #9
Timo_90xj
Web Wheeler
 
Timo_90xj's Avatar
1998 ZJ 
 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,417
You could just unbolt the front DS for now, if you have more time in the near future to do the swap.. although it can be done within a day on your driveway, you never know what kind of issues you may run into.

I strongly suggest swapping the transmission output seal and the TC input seal (it can be swapped without tearing down the TC, get the twin lip seal). I didn't change the tranny seal when I did my 249-242 swap, and it started leaking very soon after. I loose about a quart of ATF +4 every 500-700 mile, so it's pretty bad
__________________
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

http://www.jeepforum.com/forum/f13/d...s-etc-1222317/


1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
Timo_90xj is offline   Reply With Quote
Unread 10-12-2013, 08:43 AM   #10
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
I had all my seals in my transmission replaced when I had it built last year, but the front seal is leaking behind the torque converter, and I'm arguing with myself whether I should drop the transmission and replace it while I have the transfer case off. I really don't feel like I'm going to have the time.
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-12-2013, 01:14 PM   #11
Snowfan2
Registered User
1998 ZJ 
 
Join Date: Jan 2012
Location: North of Amarillo, Tx
Posts: 518
Quote:
Originally Posted by Sextiva View Post
V C just failed. It's really bad though. When I let off the gas it's like the brakes are on. My front end pops and vibrates coming to a stop and it hunkers downs like I'm launching at the drag strip. Then when I take off it pops, lifts up, pops, lifts some more. It drags my tires, they're screeching down the road, and you don't want me to get started on parking lots.
Those problems are not caused by a bad VC and swapping your TC won't help.
Snowfan2 is offline   Reply With Quote
Unread 10-12-2013, 02:27 PM   #12
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix, AZ
Posts: 3,484
yeah, what he said^

ive never heard of a VC causing problems in a straight line, only when turning
__________________
Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline   Reply With Quote
Unread 10-12-2013, 02:32 PM   #13
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
I read somewhere on here that the viscous coupler fails and causes those exact symptoms. Hmm let me look for it again.
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-12-2013, 02:39 PM   #14
Sextiva
Registered User
1996 ZJ 
 
Join Date: Nov 2009
Location: ky/in/fl
Posts: 322
http://www.club80-90syncro.co.uk/Syn..._couplings.htm
__________________
1996 GC
Sextiva is offline   Reply With Quote
Unread 10-12-2013, 02:47 PM   #15
Timo_90xj
Web Wheeler
 
Timo_90xj's Avatar
1998 ZJ 
 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,417
Quote:
Originally Posted by Sextiva View Post
I read somewhere on here that the viscous coupler fails and causes those exact symptoms. Hmm let me look for it again.
Failed VC causes wheelhop and driveline binding on turns, in most cases no problems when driving straight (unless you're running tires that aren't same diameter and the VC is REALLY stuck).
__________________
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...

http://www.jeepforum.com/forum/f13/d...s-etc-1222317/


1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***

***Under construction***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***
Timo_90xj is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.