Question about 1998 Jeep Wrangler

1 Answer

Blow rear differential

I have a 98 wrangler my rear differental was blown. I had it rebuilt with a dealer kit. It has been a month and it is going again. Lucky it's still under warranty but not sure why it would go again. Any suggestions? I have a 3" body lift and larger tires. I'm new to the jeep so I am completely lost when it comes to the lift kits and such.

Posted by on

  • 1 more comment 
  • ppdbdu2 May 30, 2009

    I picked it up about a 3 months ago from a young kid and after going over it it seemed pretty beat on. I've been getting rid of the **** (i.e. hood scoop) and making it into a jeep again. The body lift was already done. Engine and trans are in good shape. I'll attribute the first blown diff to it being beat on without knowing the jeeps history. I have only driven on the street or highway and have not had a chance to beat on it. I knew it did not sound right when I picked it up from the shop after the rebuild I should have stuck with my instincts. The diff failure after rebuild was less than 30 days someone at the shop had made a comment that a problem with the trans maybe causing the failure. Not sure i'm buying that one....Thanks for you help

  • ppdbdu2 May 30, 2009

    That's it. I did hear a whinning but not initially. I have a soft top with soft door and the weather on the east coast has not been to friendly. When I went topless is when I heard whinning. Again thanks for your help. I think the guy who did the rebuild and I are going to have a long talk.

  • Samuel Charles Spriggs May 11, 2010

    My only experience with body lifts is that they rip out u-joints. I guess it could do the same thing to a differential.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Jeep Master
  • 6,982 Answers

If all metal debris was not cleaned from inside housing it will make short work of bearings etc. If unit was not assembled correctly (requires skill, dial indicators and absolute attention to clearances), it will also quickly fail.If not properly filled with fluid same. If you went off-road and beat on it, that does not help either!!! 3" or any lift kit technically voids most my opinion, a lift of 3" will not cause diff failure, especially that fast.

Posted on May 30, 2009

  • Richard Scordino May 30, 2009

    Only way a trans can blow a rear is if it were to "neutralize" then suddenly engage...That would snap the diff spider gears. If it was whining after rebuild, likely internals weren't set correctly.

  • Richard Scordino May 30, 2009

    Before having the talk, google setting up differentials...I know this stuff and found pretty good overview of the operation from west coast differentials there...After reading it the tech won't be able to talk over your head and confuse you, and when you see the gearset, you will know exactly what you are seeing!!! (knowledge is power)



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I hear a bang when i take my foot off gas coming to atop and also hear a bang when i give it gas this happens like 75%of the time

problem most likely not in the diff but in the diff mounting and suspension points
a noise on acceleration or deceleration indicates that the diff housing is free to react to the load being applied and that is mounting bushes , broken mounting plates or other suspension problems
consider this to see if it fits
when you accelerate the reaction of the diff is to roll upwards as the wheels have traction but when under brakes ( deceleration ) the diff rolls forward
hence the bangs in both directions
suggest that you change mechanics and take it to a specialist shop that deals in your make of vehicle for a proper under body inspection of mounts , rubbers, pins and chassis mounting points
another issue her and that si the engine reacts the same way so check engine mounts and reaction rod bushes

Oct 02, 2016 | 2003 GMC Yukon Denali

1 Answer

Rumbling noise from rear 2000 denali

GMC Denali/Surburban's and Pick-up's all have the Same REAR DIFFERENTIAL's.... I am assuming yours is a 1/2 Ton Truck (1500).

Your Differential is tearing itself apart over time, the Rear Pinion has the leading edge wearing off.

You are going to have to get it rebuilt, this is so common that they now have KITS to do this (Carrier Bearings, Pinion, Crush sleeves, Ect...)

I know you did not want to hear that you are going to spend $340 in parts but if you don't then you are going to be spending $2,000 in 3-6 months...

When you are done, use ROYAL PURPLE Gear Oil for increased Mileage and lubrication qualities

Apr 16, 2013 | 2000 GMC Yukon Denali

1 Answer

I have a 92 wrangler auto with vibration when in drive and worse in reverse gear

Hi Billy,

Pinion angle is the angle between the differential yoke and the driveshaft. Wedge shims are designed to roll the differential up in the front (when you do a lift) to REDUCE this angle and make the driveshaft STRAIGHTER to the differential yoke. If your vibration is caused by pinion angle, removing the shims will make it WORSE.

I have no clue what you are saying about having the differential "wrapped up". If it is tilted upward to make the pinion angle straighter, this is what you WANT to REDUCE vibration.

If you did not change the length of your drive shaft, you are likely having a problem with your slip-yoke being bottomed out. - A whole other can of worms...

This is the problem with installing lift kits and the reason that I neither recommend them nor install them.

Nov 10, 2011 | 1992 Jeep Wrangler

2 Answers

What type of Dana is in the rear of the 98 4cyl wrangler

Engine, with filter..........6.1 quarts [1]
Cooling System, Initial Fill..........10.6 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 30RH Initial Fill..........4.1 quarts
Automatic Transmission, 32RH Initial Fill..........4.1 quarts
Automatic Transmission, Total Fill
3 speed 30RH..........7 quarts
3 speed 32RH..........8.6 quarts
Manual Transmission, AX-5 2WD..........7.4 pints
Manual Transmission, AX-15 2WD..........6.8 pints
Manual Transmission, AX-15 4WD..........6.8 pints
Differential, 181 FBI Front..........2.6 pints [2]
Differential, With 194 RBI Rear..........3.6 pints
Differential, With 216 RBI Rear..........4.1 pints
Transfer Case, 242..........3 pints
Transfer Case, 247..........3.4 pints
Transfer Case, 249..........3.4 pints
Transfer Case, 231..........2.2 pints

Feb 14, 2011 | 1998 Jeep Wrangler

1 Answer

Trying to find out what front differential I have so i can order a rebuild kit

It alot of information to work with. No make, year, engine or transmission. Most wranglers came with a Dana 30 front differential and a Dana 35 rear. Hope this helps.

Feb 11, 2011 | Jeep Grand Cherokee Cars & Trucks

1 Answer

I have a 1993 Jeep wrangler with different differential ratios

I'm not sure, but there are thousands of Jeep forums on the web-I'm sure there are guys there that can tell you everything you need to know.

Mar 15, 2010 | 1993 Jeep Wrangler

2 Answers

98 jeep wrangler rear diff dana 35

when you take the rear cover off of the differential housing you will see a whole bunch of small clutches between the spider gears and the ring gear housing, you will see that the axles go right through them. If it is not a limited slip it will not have these clutches

Jun 25, 2009 | 1998 Jeep Wrangler

1 Answer

Oil type for front and rear differential for 98 jeep wrangler 4.0

can't really go wrong with synthetic oil as long as the grade and weight of the oil is equivelent to what is in there now.

Apr 11, 2009 | 1998 Jeep Wrangler

1 Answer

Jeep 1992 Wrangler - Replacing rear differential

yes the first 3 digits 411 is your ratio and they should be on the other rears the same way they have to match the front rear end

Mar 23, 2009 | 1992 Jeep Wrangler

Not finding what you are looking for?
1998 Jeep Wrangler Logo

210 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

76051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides