Differential - 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 > Differential

Rough Country Lift Kits and Parts!XJ Rail Sale!The Ruffstuff NOT Universal 4 Link Kit!

Reply
Unread 05-13-2013, 06:29 PM   #1
Raimundo
Registered User
1993 ZJ 
 
Join Date: Dec 2012
Location: Newark, nj
Posts: 170
Differential

how do I know if I have Limited slip differential or no? I have to replace ball joints and since I have to remove the cover, I'm going to replace differential lub too.

Raimundo is offline   Reply With Quote Quick reply to this message
Unread 05-13-2013, 06:40 PM   #2
PolkaPower
Registered User
1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, Italy
Posts: 16,353
Considering that you do not have ball joints on the rear axle that leads me to believe you are working on the front. No ZJ ever came with a limited slip front end so I would say that unless someone put one in later then you do not have one.
PolkaPower is online now   Reply With Quote Quick reply to this message
Unread 05-13-2013, 06:42 PM   #3
SuperStew11
Registered User
2000 WJ 
 
Join Date: Mar 2013
Posts: 194
I know with the rear axle when it is in Neutral if you spin a wheel if they both spin the same it's the limited slip, not sure if that will work with the front

Also there should be an identification plate on your diff that should tell what axle and gear it is. A quick google off of that will tell you
SuperStew11 is offline   Reply With Quote Quick reply to this message
Unread 05-13-2013, 08:25 PM   #4
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix, AZ
Posts: 3,484
Look for the tag on the rear diff cover. If you have lsd, there will be a tag that says "use limited slip additive only" or something like that. If you dont have lsd, there will just be the normal gear ratio tag
If you're still not sure, just put in the additive anyway. Even if you dont have lsd, the additive wont hurt anything. But if you do have LSD and you dont put the additive, you can hurt the clutches
__________________
Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline   Reply With Quote Quick reply to this message
Unread 05-13-2013, 09:43 PM   #5
tucsonzj
Registered User
2000 TJ Wrangler 
 
Join Date: Jul 2012
Location: Boston, MA
Posts: 2,153
get your build sheet from Chrysler? it'll tell you if it has a LSD or not, not to mention the tag, if it's still on there it'll tell you. Worse case as said throw the additive if you're not sure.

I don't think 93's came with a LSD but i'm not sure.
__________________
"washing it inside and out is on my to-do, eventually, maybe, if I have time, OOOH angle grinder."
tucsonzj is offline   Reply With Quote Quick reply to this message
Unread 05-13-2013, 10:07 PM   #6
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix, AZ
Posts: 3,484
Quote:
Originally Posted by tucsonzj View Post
get your build sheet from Chrysler? it'll tell you if it has a LSD or not, not to mention the tag, if it's still on there it'll tell you. Worse case as said throw the additive if you're not sure.

I don't think 93's came with a LSD but i'm not sure.
saw a 93 in the boneyard with LSD
__________________
Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 04:15 AM   #7
tucsonzj
Registered User
2000 TJ Wrangler 
 
Join Date: Jul 2012
Location: Boston, MA
Posts: 2,153
Quote:
Originally Posted by dnuccio View Post
saw a 93 in the boneyard with LSD
huh I stand corrected...I have never seen one how interesting.
__________________
"washing it inside and out is on my to-do, eventually, maybe, if I have time, OOOH angle grinder."
tucsonzj is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 05:30 AM   #8
AmishFury
Registered User
1997 ZJ 
 
Join Date: Oct 2011
Location: Evansville, IN
Posts: 598
Quote:
Originally Posted by dnuccio View Post
Even if you dont have lsd, the additive wont hurt anything.
except your wallet though some brands of gear oil include the additive (IIRC valvoline synpower does and it's cheap)
AmishFury is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 08:53 AM   #9
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix, AZ
Posts: 3,484
Quote:
Originally Posted by AmishFury View Post
except your wallet though some brands of gear oil include the additive (IIRC valvoline synpower does and it's cheap)
when i changed my diff fluid (i have lsd) i bought the additive from the dealer for 15 bucks. if you dont know if you have lsd, thats still way cheaper than having the lsd rebuilt if you fry it by not putting the additive in.
__________________
Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 09:12 AM   #10
PolkaPower
Registered User
1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, Italy
Posts: 16,353
When you open the diff you should be able to visually tell a limited slip carrier from open. http://www.jedi.com/obiwan/jeep/pics...rriers_720.jpg
PolkaPower is online now   Reply With Quote Quick reply to this message
Unread 05-14-2013, 09:18 AM   #11
dnuccio
Registered User
1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix, AZ
Posts: 3,484
Quote:
Originally Posted by PolkaPower View Post
When you open the diff you should be able to visually tell a limited slip carrier from open. http://www.jedi.com/obiwan/jeep/pics...rriers_720.jpg
the lsd one is the more square one right?
__________________
Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 09:24 AM   #12
PolkaPower
Registered User
1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, Italy
Posts: 16,353
Quote:
Originally Posted by dnuccio View Post
the lsd one is the more square one right?
Yes
PolkaPower is online now   Reply With Quote Quick reply to this message
Unread 05-14-2013, 03:01 PM   #13
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,794
you won't fry it if you have to drive to the parts store after filling it to get a tube of diff additive.

also, if it's not worn out in most of the zj's still on the road, i'd be amazed. they really only last about 100k before you need new clutches.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 03:20 PM   #14
BuzzZJ9er
Registered User
1998 ZJ 
 
Join Date: Jan 2013
Location: Sheffield, Vt
Posts: 244
Not to hi-jack but if you weld the spider gears, even with LSD, the additive is no longer needed correct?
BuzzZJ9er is offline   Reply With Quote Quick reply to this message
Unread 05-14-2013, 03:49 PM   #15
KingtheZJ
Registered User
1998 ZJ 
 
Join Date: Nov 2009
Location: Rochester NY
Posts: 2,650
Quote:
Originally Posted by BuzzZJ9er View Post
Not to hi-jack but if you weld the spider gears, even with LSD, the additive is no longer needed correct?
correct
__________________
'98 ZJ on 37s and tons
'97 Cummins 2500
KingtheZJ is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






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.