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  #13  
Old 10-03-2013, 04:23 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Got some info from the dealer regarding transfer case service. Depends on which manual you have, one of them is more specific:
32,000/ 24 mo- Inspect fluid level

64,000/ 48 mo- Change the transfer case fluid if using your vehicle for any of the following: police, taxi, fleet, or frequent trailer towing.
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  #14  
Old 10-14-2013, 12:57 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

All,

I have a 2012 Summit V8 with the ELSD in the rear and wanted to report that Mobil 1 75w-90 LS Synthetic Gear Oil works fine in the diffs in this vehicle.

No additional limited slip additive (Jeep or otherwise) was required for the ELSD unit in the rear diff.
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  #15  
Old 10-20-2013, 07:57 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Yep, the "LS" denotes that it is for limited slip applications. It can be used up front as well.
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  #16  
Old 07-06-2014, 11:16 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Tackling this project of the differentials and transfer case in the next week. I had read the the fluid was 75W135 with limited slip differential additive. Going with synthetic. On the transfer case I see that a Shell fluid is recommended instead of ATF+4. would using ATF+4 be bad for the transfer case on the 3.6L or just an extra cross?
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  #17  
Old 07-08-2014, 11:18 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Quote:
Originally Posted by champagneinhand View Post
Tackling this project of the differentials and transfer case in the next week. I had read the the fluid was 75W135 with limited slip differential additive. Going with synthetic. On the transfer case I see that a Shell fluid is recommended instead of ATF+4. would using ATF+4 be bad for the transfer case on the 3.6L or just an extra cross?
I believe that the correct axle lube is 75w90.
For the transfer case, it will depand on which brand of fluid you go with. Make sure that it meets the Shell 3403 spec. Amsoil meets that, the ATF+4 and the Mercedes requirements that are called out by Mopar for the T case.
Quote:
Ford MERCON®, MERCON® V, ESP-M2C166-H; GM DEXRON® III; Chrysler ATF+4®, MOPAR® AS68RC; Allison C-4, TES-389; Audi G 052 162, G 052 990, G 055 025; BMW 7045E, LA 2634, LT 71141; Honda ATF-Z1 (not CVT); Hyundai SP-II and SP-III; Idemitsu K17; JASO 1-A; JWS 3309, 3314, 3317; Kia SP-II and SP-III, ATF Red-1; MAN 339F, 339 V1, 339 V2, 339 Z1, Z2 & Z3; Mazda ATF-M III, ATF-MV, ATF-FZ; Mercedes Benz 236.1, 236.2, 236.3, 236.5, 236.6, 236.7, 236.9, 236.10, 236.11, 236.81; Shell 3403, LA 2634; Subaru ATF, ATF-HP; Suzuki 3314 & 3317;
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  #18  
Old 04-28-2015, 04:03 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Thank you! Your write up helped guide me in changing my Front n Rear diff fluid on my 2014 Summit HEMI. Used Amsoil for both diffs. Prob use Jeep fluid for transmission n maybe Tcase too. Thanks!
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  #19  
Old 05-05-2015, 11:36 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Glad to be of help!
FWIW, you can use the AMSOIL transmission fluid in the T case as well. While you are at it change the power steering fluid too. All the same stuff!
Edit- I am not sure about your year, check the manual for specs on the fluids.
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  #20  
Old 05-06-2015, 02:04 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Thanks a lot for the DIY with pictures. I am going do the same maintenance this weekend on my WK2.

Quick question:
Mine is a 3.6L Engine with Quadra-trac II transfer case. I looked at my build sheet and it says I have 195mm front and rear axle and 3.09 rear axle ratio. Also says that I have the conventional differential front and rear axle.

My question is what fluid do I need to change diff and transfer case fluids?

Many thanks in advance!

Cheers,
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  #21  
Old 05-07-2015, 09:45 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Check your owners manual to be sure. I don't know off the top of my head, but suspect it is still 75w-85. If you go to DC-Moto.net and plug in your vehicle info you can get all the fluid spec.
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  #22  
Old 05-07-2015, 06:03 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Thanks EvilTwin...

I stopped by the dealership yesterday and they looked up and gave me Moper ATF+4 for the transfer case (2 quarts) and for the axle it was part number 68083381AA (3 quarts). The axle fluid says it is for ELSD and the service manager told me that it is okay to use it on non-ELSD diffs.

Not sure if I should use it or look for Mopar p/n 05136035AA.

Any inputs?

Many thanks!!
-A
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  #23  
Old 05-08-2015, 10:55 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

For non- ELSD my choice would have been AMSOIL but they are correct in that the MOPAR part would be fine. You can run oil with a friction modifier in non limited slip axles. You can not run non-modified oil in a LS axle.
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