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  #25  
Old 11-28-2015, 02:29 PM
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Originally Posted by dsears00 View Post
Thanks for the write-up! I changed my diff and transfer case fluids yesterday. Interestingly, the back diff fluid looked okay... It was the front on mine that was nasty.

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Just did mine also but it was opposite. Rear was black and front was clean. It was with ELSD not sure if that has any impact

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  #26  
Old 11-28-2015, 09:10 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Interesting that the front of dsears00 was the dark one. Usually it is the rear due to the clutches in the pumpkin as they wear.
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  #27  
Old 03-18-2016, 08:34 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

Bump
Had a PM looking for the thread
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  #28  
Old 03-19-2016, 04:42 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Timely that you bumped this thread to the top. I just had a service "advisor" tell me that I cannot change the differential fluid myself because there are no drain plugs. Completely called him out on the blatant lie thanks to this thread and the OP. Probably not going back to the same dealership for service.
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  #29  
Old 03-20-2016, 12:24 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Sorry about the experience but happy it helped.
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  #30  
Old 03-20-2016, 05:04 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

It's pretty easy to do on a warm, dry day. Having the right hex wrenches makes a big difference, especially with that front differential. I had almost 55k miles and the rear was pretty dark. The transfer case was no problem. MOPAR fluids were easy to get ahold of.
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  #31  
Old 04-26-2016, 02:25 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Is there a how to for the transfer case?
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  #32  
Old 04-26-2016, 08:24 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

I haven't seen one. Pretty straightforward though. If you have the 3023 transfer case there is a fill plug about half way up to the left (near the silver data plate) and a drain plug near the bottom. Both look a lot like the differential plugs.
Take the top out first. Well, loosen it anyway. Then the bottom to drain it. Put the drain plug in and filler up to the top hole.
One of the other cases the level is supposed to be 10mm or something below the hole. You have to make a dipstick with a wire.
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  #33  
Old 04-26-2016, 11:31 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

I hope you don't mind me adding to your EDU.

So I attempted to do my diffs and transfer case today. I just hit 30K a week or 2 ago.

I do not have the quad lift.... or ramps.... But on my previous vehicle, a 2007 Tacoma, I was able to just roll underneath and do them without issues. The GC is slightly lower, but I think it's doable.

While getting the oil changed at the dealer, I picked up 3 qt of axle oil and 2 qt of ATF.

Got home and looked underneath the vehicle.... Hmmm, seems kind of tight. Oh, I also whatever package the skids plates come with. Welp, decide to tackle the rear diff, since that's the easiest. Lots of room. Followed Evil's direction without issue. Only issue I had was, I was only able to pump in 1 full qt before it started seeping out, even though it should be 1.3 qt. I guess I'm not levelled? It's most likely fine.... but will it be best if I drive around and find a flat spot to top off?

Anyways, I decide to tackle the front diff now. Hmmmm, there is significantly less clearance there. I can slide underneath it, but no way can I wrench.

So I inspect the transfer instead. It's tight too, but manageable. I remove my skid plate. Here's a tip for the noobs like me with their vehicle.






Here's the top side of the skid plate. There's 5 5/8" bolts holding it up. Remove the ones in red completely. Then loosen the green ones halfway. Then just slide the plate off, so it wont fall on top of you or smack the ground.

When reinstalling, remove the 2 green bolts completely on driver side. Have a box or something on the ground, to prop the plate up a bit. I'm laying from the driver side looking out towards the passenger side. I then lift the plate, to hook that passenger side green bolt, then hold it up with 1 hand and work the 2 green bolts in place.


Alright, so time to back track. Now you have the center skid plate removed. Looking towards the front of the vehicle, you'll see the 8MM plugs. They have sealant on them and in the confined space, that fill plug is a mother****er. At least it was for me. I almost gave up on it, bc I couldn't get a good angle . It's very tight with the exhaust pipe in the way. I finally found the best combination of using the 8MM socket, and i think a 1.5" extension, and a 1.75" extension. There's a sweet spot you have to aim for.







Alright, so I pump 2 quarts of ATF+4 in and it still wants more???!?!?! WTF. I see it says 1.9L aka 2qt, but what the hell. It didn't seep at all. Obviously, there's some loss in the bottle and the hoses, but still. Don't have any extra bottles on hand. Any one else have this issue with the transfer case? Did you have to pump more than 2 quarts in to get it to weep? I'm still on the same incline.

So that's weird to me. Not enough in transfer, but too much in rear diff?

I just button everything back up.

I'll have to tackle the front some other time when I pick up some ramps or something.
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  #34  
Old 04-27-2016, 08:33 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

I do recall the transfer case on mine taking slightly more than 2 quarts to reach the fill hole. Not much more. I attributed it to the hose and pump and what is left in them. If you are off by 10% it isn't a big deal. The pump pick up is at the very bottom of the case.
Your rear axle is likely fine too. I have put nearly 1.3 in it and the last time was 1 quart. I just check it after a drive and call it good if it seeps out.
Good advice on the skid plates, BTW. They can suck if they fall on you! I use a floor jack to hold it up while removing bolts then I can slowly lower it out of the way. Then jack it back up into place.
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  #35  
Old 05-01-2016, 12:04 PM
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Re: DIY- 2011 Differential Service/ Fluid Change

Great write up, Thanks for sharing
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  #36  
Old 05-04-2016, 12:26 AM
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Re: DIY- 2011 Differential Service/ Fluid Change

So I completed the job today. Got my ramps and went to town on the front diff. There's 4 13MM bolts holding the skid plate.

On my '14 V6. The fill plug can not be reached with the 8MM Allen socket. I had to use my L Allen wrench. The socket is too long and you're blocked by the oil pan.

I was also only able to get 1 quarter in. Actually less. It want weeping out of the fill hole, it was gushing out for me on the last couple of pumps. I just jammed the plug back in trapping as much as possible.

So now I have an extra quart of this expensive as hell axle oil. While I was underneath, I thought these are sealed trannies, but I guess not. Spotted what appears to be the fill and drain plugs.
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