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  #37  
Old 05-18-2016, 06:53 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

I wasn't comfortable with the rear 'missing" .3 qt. So I went and tried to fill it up today. Parked at a level spot. Removed the fill plug and didn't see anything come out. Opened my last bottle of oil and started to pump. I think I got 4 or 5 pumps and it was oozy out. Looking at the markings on the bottle, looks like 4 fl Oz went in. Nowhere near .3 quarts. I wonder if they changed something. Maybe the spec is wrong? Maybe just user error.

Now I feel more comfortable about lack of fluids in the front diff and transfer case.

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  #38  
Old 05-19-2016, 10:51 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

I did my rear and it only took 1qt. Should take a little more with 195mm rear. Reading your post makes me feel better.

I took to a great local lube place and they charged me $40 to do front and xfer case.

Tech said xfer case was full with 2 qts and front took 1qt.
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  #39  
Old 07-27-2016, 02:51 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Alright having a little trouble and a bit confused. I would like to change the fluid in my differentials and transfer case. I have a 2014 Limited Grand Cherokee 4x4 3.6L V6. I looked up just about as much as I could on this SUV and the specs from jeep say I have:

195MM Front Axle
Quadra-Trac II (R) 4WD System
3.45 Rear Axle Ratio
195MM Rear Axle
Conventional Differential Frt Axle
Conventional Differential Rear Axle

Now how do I know if I have an electronic limited slip differential? I know the ELSD requires a special additive for the differential but I don't know if I have one?? Any help in clarifying this would be awesome. I've tried to figure it out on my own but I'm now officially lost and confused. Thanks
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  #40  
Old 07-27-2016, 08:51 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Quote:
Originally Posted by bhood91 View Post
Alright having a little trouble and a bit confused. I would like to change the fluid in my differentials and transfer case. I have a 2014 Limited Grand Cherokee 4x4 3.6L V6. I looked up just about as much as I could on this SUV and the specs from jeep say I have:

195MM Front Axle
Quadra-Trac II (R) 4WD System
3.45 Rear Axle Ratio
195MM Rear Axle
Conventional Differential Frt Axle
Conventional Differential Rear Axle

Now how do I know if I have an electronic limited slip differential? I know the ELSD requires a special additive for the differential but I don't know if I have one?? Any help in clarifying this would be awesome. I've tried to figure it out on my own but I'm now officially lost and confused. Thanks
You do not have ELSD. It is only available on the 230mm differential. With that said, in any vehicle you are not sure about it is always a safe bet to use lube that is already fortified with the friction modifier. They are safe to use in traditional open differentials as well. AMSOIL Severe Gear meets FCA specifications and is suitable for any clutch operated traction device like ELSD and do not require additional friction modifier additive.
Amsoil Signature Series ATF is great for the transfer case and transmission. It is Chrysler ATF+4 rated for use in the GC.
If you are interested in having everything you need dropped right at your door (including the fluid pumps!) send an email to mcarter@dcmoto.net and he can get you squared away. He is a friend and fellow motorcycle racer. I don't get commission
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  #41  
Old 07-29-2016, 11:47 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Thanks so much for your help, you made this a lot easier to understand.
I went ahead and purchased the following:
(2 Quarts) Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid (ATF)
(3 Quarts) SEVERE GEAR 75W-90 Synthetic EP Lubricant

Hopefully that will be enough to swap out the fluids for the front and rear diff. plus the transfer case and keep everything running smooth. Thanks again
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  #42  
Old 07-30-2016, 08:18 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

You are welcome! Just remember to crack open the fill plugs first.
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  #43  
Old 07-31-2016, 12:42 PM
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Quote:
Originally Posted by bhood91 View Post
Thanks so much for your help, you made this a lot easier to understand.
I went ahead and purchased the following:
(2 Quarts) Signature Series Multi-Vehicle Synthetic Automatic Transmission Fluid (ATF)
(3 Quarts) SEVERE GEAR 75W-90 Synthetic EP Lubricant

Hopefully that will be enough to swap out the fluids for the front and rear diff. plus the transfer case and keep everything running smooth. Thanks again
I did the same exact set up and it was more than enough for the transfer case and the diff's. I didn't need any additional friction modifier either for the rear.
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  #44  
Old 08-01-2016, 08:12 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Alright perfect, does anybody know of a good write-up for changing out the transfer case fluids? Or can you provide a link to it? Also spoke with a mechanic from the jeep dealership and he said they use BG 75w140 fluid for all their differentials, I guess that's what they buy in bulk and use. Apparently they dont even use the mopar fluid haha. I'm going to stick with the amsoil though, seems like the best bet.
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  #45  
Old 08-01-2016, 08:20 PM
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Quote:
Originally Posted by bhood91 View Post
Alright perfect, does anybody know of a good write-up for changing out the transfer case fluids? Or can you provide a link to it? Also spoke with a mechanic from the jeep dealership and he said they use BG 75w140 fluid for all their differentials, I guess that's what they buy in bulk and use. Apparently they dont even use the mopar fluid haha. I'm going to stick with the amsoil though, seems like the best bet.
Stick with the signature series atf for the transfer case and 75w- 85 for the diff's.

As for the transfer case, it's just drain and fill. Open the fill plug, then the drain. Let it drain out till it's just dripping. Tighten up the drain plug. I used a suction pump to put the fluid back in. I wanna say it's 25 ft lbs for all the plugs, but I could be wrong. If you google it you can find the spec for the tightness. It should be 2 qts, but just fill till it starts weeping out.

I did mine at 50k and I honestly could have gotten a lot more life out of the fluid that was in there. Like probably another 25k.
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  #46  
Old 08-02-2016, 07:50 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Ok, was hoping someone had pictures of the bolts for the transfer case so I know exactly which ones to open. EvilTwin had an excellent write up and pictures for the diffs which made it easy. I'm going to check the levels at 50k and see how they are but if I can go a little longer like you're saying I might just do that.
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  #47  
Old 08-02-2016, 10:29 AM
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Quote:
Originally Posted by bhood91 View Post
Ok, was hoping someone had pictures of the bolts for the transfer case so I know exactly which ones to open. EvilTwin had an excellent write up and pictures for the diffs which made it easy. I'm going to check the levels at 50k and see how they are but if I can go a little longer like you're saying I might just do that.
That is a picture of my transfer case taken from the back of the Jeep looking forward. Top is fill bottom is drain.

Hope that helps.

ForumRunner_20160802_102734.png
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  #48  
Old 08-02-2016, 11:05 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Thanks, will try and find that under my jeep, hopefully mine has that sticker on it like yours does to make it easy haha
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