Rear-diff Troubles and Solutions - 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 Cherokee & Comanche Forums > XJ Cherokee Technical Forum > Rear-diff Troubles and Solutions

All Bilstein shocks & struts - Lowest Prices Ever and Poison Spyder DeFenders™ - "Tubeless" Jeep FendeSanta Kolak Announces: Kolak Exhaust 20% Off Sale!

Reply
Unread 12-25-2012, 05:35 PM   #1
thegreenjeepman
Registered User
 
Join Date: Dec 2012
Location: los angeles, ca
Posts: 2
Rear-diff Troubles and Solutions

Hi there,

New forum member (long-time reader) and pretty unintelligent when it comes to the inner workings of a car. Forgive me in advance.

99 Jeep Cherokee Sport. Having some pretty good vibration throughout the car starting at about 70-72 mph. I've had car aligned, wheels rebalanced. The joints have been checked out, don't think it's that.

So I am out of ideas. I take the jeep to a garage and they lift it up and run it at high revs and show me the rear-diff is vibrating and making some noises. Seems like the diff is the culprit of the vibration/shaking.

I don't want to pay $800 right now to get that rebuilt. I can put the jeep in 4-wheel high and disconnect the rear drive, essentially turning my jeep into a front wheel drive. Here is the question, what are the longer term impacts of doing this? Could it cause other damage to the car?

I live in LA so its not like I really need 4WD. Any and all thoughts on this are welcome. Such as:

- Can a rear-diff issue really cause vibration throughout the car, going in a straight line down the freeway at 70?

- Cost, ideas on rear-diff repair?

Thanks in advance for the forums help. As a Jeep owner for the past 10 years I have used this forum often to get ideas and tips on little repairs which have kept my car running great throughout the years.

Hope everyone is having a great holiday! Cheers!

D

thegreenjeepman is offline   Reply With Quote Quick reply to this message
Unread 12-25-2012, 05:44 PM   #2
CJ7-Tim
Real Jeeps have dents.
 
CJ7-Tim's Avatar
2000 XJ Cherokee 
 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
Posts: 22,080
Visit at least two more shops, including a clutch and drive line shop. Have them inspect and diagnose. Say nothing of previous inspections/diagnostics. IMO, driving with the front axle is very short term solution, as in a few hundred miles or less.

If in fact, your rear differential needs a $600 - $1,000 rebuild, your most inexpensive solution is to buy a complete axle and install it yourself. You can swap axles in your driveway with simple hand tools in about 4-6 hours.
__________________
.

Between 2009 when Obama took office, and 2013, median annual household incomes have fallen by more than $2,100.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ......

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
CJ7-Tim is offline   Reply With Quote Quick reply to this message
Unread 12-25-2012, 06:57 PM   #3
BlkCat
Registered User
1999 XJ Cherokee 
 
Join Date: Apr 2011
Location: New york, NY
Posts: 16
Correction greased SPLINE

I was getting vibration felt like rumble strip. Was advised to check for binding universal and dry spline. Grabbed driveshaft and found no play in any direction but had never greased spline so I took back universal apart. Universal was binding and spline was dry. Greased spline and changed u joint. no more vibration. Just saying.

Last edited by BlkCat; 12-28-2012 at 01:28 AM.. Reason: Correction-Part
BlkCat is offline   Reply With Quote Quick reply to this message
Unread 12-25-2012, 08:05 PM   #4
flexyxj
Registered User
2009 XK Commander 
 
Join Date: May 2005
Location: Sioux Falls,SD
Posts: 491
It's probably got the OEM u-joints in it. That's where I'd start. If you pull the rear driveshaft, I think the oil in the transfer case will run out through the seal when driving it. Pull the diff cover and take a look. If you have to put in a used rearend,make sure to get the right gear ratio. Most are 3:55's,but not all. I've done 2 swaps with a buddy in the driveway with some power tools in 4hrs. Piece of cake.
flexyxj is offline   Reply With Quote Quick reply to this message
Reply

Tags
rear diff , rear differential , vibration

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.