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Unread 01-24-2009, 12:25 PM   #1
WranglerMB
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Differential Service 15,000 miles

Just got back from my local Jeep dealer for a routine 15,000 oil and air filter change and was informed that I need a recommended differential service at a cost of $500. Typically I follow the service manual for maintenance and there is no mention of a differential service at 15,000. Is this service really required? I've a 2006 LJ.
Thanks..........

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Unread 01-24-2009, 12:32 PM   #2
2jhanna
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early to me, if you have not been in water. also very high $$.

you can do it yourself for about $20-25 per axle. but, then again, you can also do an oil/filter change yourself for cheaper $$ (unless you got it almost free).
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Unread 01-24-2009, 12:39 PM   #3
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Quote:
Originally Posted by WranglerMB View Post
Just got back from my local Jeep dealer for a routine 15,000 oil and air filter change and was informed that I need a recommended differential service at a cost of $500. Typically I follow the service manual for maintenance and there is no mention of a differential service at 15,000. Is this service really required? I've a 2006 LJ.
Thanks..........
To remove 2 differential covers, drain, clean,reseal and fill?
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Unread 01-24-2009, 12:40 PM   #4
vtx531
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I think it says every 12,000 miles in my manual. $500 is way too much though. It's not that critical though, most people never change this for the life of their trucks and seem to be fine. I do mine once every summer...cause I get bored and I like wrenching on my Jeep.
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Unread 01-24-2009, 12:41 PM   #5
RVA_TJ06
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See what they do at the dealership (from someone I knew that worked at Jeep) they actually just suck out the fluid.. and charge you a lot of money.

Best way to do it is yourself.. But in the service manual it says to do it every 12000 miles. I think it's really early.. but I'm just telling you what it says.

Beat me to it.
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Unread 01-24-2009, 12:42 PM   #6
design311
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Do it yourself and save your money. Takes an hour tops.
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Unread 01-24-2009, 12:43 PM   #7
vtx531
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I just got one of THESE for my birthday and a 5 gallon bucket of 80w90. I will be a diff changing maniac now lol.

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Unread 01-24-2009, 01:24 PM   #8
Unlimited04
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I did my diffs at 30k, they were well overdue. 15k sounds about right, but don't pay the dealer $500. go to a local 4x4 shop - mine charged $180 for both axles w/ friction modifier for the rear. Don't forget to have them add friction modifier to the rear D44 in your LJ, which is needed for the Trac-Lok!!! I used that opportunity to upgrade to some Riddler Diff covers because it was included in the labor charge
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Unread 01-24-2009, 01:42 PM   #9
commodore_dude
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I haven't changed my diff fluid yet and I'm about to hit 24k miles, the service manual just says you need it if you've been towing, etc... my Jeep's mostly a commuter and has only very rarely done a water crossing, so I figure I don't need this "optional" change.
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Unread 01-24-2009, 02:29 PM   #10
WranglerMB
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Quote:
Originally Posted by RVA_TJ06 View Post
See what they do at the dealership (from someone I knew that worked at Jeep) they actually just suck out the fluid.. and charge you a lot of money.

Best way to do it is yourself.. But in the service manual it says to do it every 12000 miles. I think it's really early.. but I'm just telling you what it says.

Beat me to it.
You're right, it does say replace the fluids at 12,000 I bought it used with 13,000 I didn't look back in the schedule although it does say required if subject to heavy loading and or towing. I hadn't planned on giving those criminals a dime (giving them enough in a bail-out) probably do it myself with a bit of research first, wasn't aware of friction modifier for Trac- Loks.....thanks for all the tips..... love this forum
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Unread 01-24-2009, 02:38 PM   #11
AKTJ
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Diff fluid change

Do a search on this site for diff service and you will find links to step by step instructions on how to do it yourself. I had never changed diff fluid before but by using the info from people here I was able to do it myself and save alot of money and have the piece of mind that it was done correctly. If you use a good quality gear oil like Royal Purple (the one I used), Amsoil, ect. they have the friction modifier already in them. Just mtc glad I took the time to do it and am now more confident about doing other repaires and maintnance.
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Unread 10-12-2010, 06:25 PM   #12
djkoder
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My dealer recommended the same service at 15000. But there price is $280
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Unread 10-12-2010, 07:06 PM   #13
mattlock1983
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I can't believe nobody has suggested to check stu olsen's website. He has step by step instructions with pictures on how to change diff fluid. The Instructions are so simple to follow, a child has done it. It's practically free (compared to 500$) to do it yourself and it only requires one tool, a 1/2" crecent wrench. If one is afraid to apply the rtv gasket by oneself, there are lube locker gaskets to be had online that make the job a snap. If one has a rubicon, the diffs have a drain plug allowing changing of the gear oil without even removing the diff covers.


Differential Service
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Unread 10-12-2010, 08:16 PM   #14
chris142
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Mine was nasty grey @ 34K when I changed mine. $500 is highway robbery though. You can easily do it yourself for under $50 per axle even if you use some super dooper oil.
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Unread 10-12-2010, 08:53 PM   #15
unlimited4x4
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4x4xplor has a great write up too. I used it this weekend. I can't believe they want $500 for this. What a rip off.

4x4xplor.com - Jeep TJ Wrangler, JK, CJ and XJ Cherokee Write-Ups

Look under the tech write ups. He has how-to's for a majority of the basic maintenance on your TJ.

A wealth of info on the site.
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