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Old 05-19-2011, 02:10 PM   #1
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2011 rubi diff fluid

Putting a skid plate in and needing to change the fluid, I thought I needed to put in 2.5qts, but it began running out the fill hole just after one!! Front diff, Dana 44 w elockers.
I can look in the hole and see the fluid.

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Old 05-19-2011, 02:53 PM   #2
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sounds like you are good then

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Old 05-19-2011, 02:57 PM   #3
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Even though it took less than half of what I have read? Makes me a little worried!
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Old 05-19-2011, 03:30 PM   #4
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Front diff only takes (ona good day) one qt--

What fluid are you using ??

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Old 05-19-2011, 03:39 PM   #5
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Royal purple 75w90

Thanks jimbox I feel better bout it now. First time messing w the diffs, I'm always nervous till I know I've done it right!!
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Old 05-19-2011, 03:44 PM   #6
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Yea, Royal Purple is pretty well recommended to-


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Royal purple 75w90

Thanks jimbox I feel better bout it now. First time messing w the diffs, I'm always nervous till I know I've done it right!!
Wait till you do the rear, you'll have to do a little angle/dangle to get the full 2 qts in there--but it's doable

I use Valvoline 75w-140 cause I tow and it was recommended after the regear !!

Cleaning up that little overflo, is a PITA with a skid on the front diff-

Keepyerpowderdry-

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Old 05-19-2011, 03:53 PM   #7
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So the rear will take two qts?

I don't have the ambition or time to tackle it today!! May e next week.
I haven't even thought bout the plate and cleaning up...Dangit!!

Thanks again, I appreciate your help
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Old 05-19-2011, 03:59 PM   #8
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Heh Heh,yea the rear has to hold enough for both axle sides (partial) and the diff, but

It's setup for the pinion angle and I park mine, jeep facedown on my inclined driveway, (to fill, not drain)-


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So the rear will take two qts?

I don't have the ambition or time to tackle it today!! May e next week.
I haven't even thought bout the plate and cleaning up...Dangit!!

Thanks again, I appreciate your help
Driveit for 15 minutes before you drainit, that'll warm up the fluid and it flows faster/better-

Good day-

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Old 05-19-2011, 05:25 PM   #9
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Unless you remove the cover, you aren't completely draining all the fluid.
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Old 05-19-2011, 05:37 PM   #10
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YUP, if you don't mind the extra work/seal/cleaning/RTV/Gasket/loss of reuse for LUBELOCKERS-I do, so


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Unless you remove the cover, you aren't completely draining all the fluid.
I just use the drain plug and bounce the jeep !!

Keepyerpowderdry

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Old 05-19-2011, 05:43 PM   #11
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Quote:
Originally Posted by moscoeb
Putting a skid plate in and needing to change the fluid, I thought I needed to put in 2.5qts, but it began running out the fill hole just after one!! Front diff, Dana 44 w elockers.
I can look in the hole and see the fluid.
You have to fill it slow , the fluid is thick and needs time to settle. Remove the plug today and see if any runs out.
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Old 05-19-2011, 05:46 PM   #12
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Yea, thats a good idea-


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You have to fill it slow , the fluid is thick and needs time to settle. Remove the plug today and see if any runs out.
I had to top both mine off-after 25 miles with the new fluid and filled them on angle !!

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Old 05-19-2011, 06:06 PM   #13
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i really hadnt planned on taking the whole cover off, however, when i took the bottom bolt off to put skid on, it began to leak some. the instructions stated to completely drain, take off and regasket if this happens. I assume because it means your gasket it not water tight anymore and you can take on water during a ford. so thats how a quick 30 min project turned into all day!! i figured i would drive it to work tomorrow and check it when i get there, top it off if need be.

thanks for all the help everyone, at least now i know im not waaaay of on the amount of fluid, as i initially thought i hadnt gotten even half of it in, made me a little nervous!!
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Old 05-19-2011, 11:14 PM   #14
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FYO - for a Rubicon the Factory Service Manual calls for 1.35 quarts in the front and 2.375 quarts in the rear.
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Old 05-19-2011, 11:40 PM   #15
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Heh Heh, yea and the only way for me to get near that amount, was to add fluid on my slanted driveway, because that would set the diffs, for an excessive fill angle--can't doit on a flat garage floor-


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FYO - for a Rubicon the Factory Service Manual calls for 1.35 quarts in the front and 2.375 quarts in the rear.
I couldn't tell (.35) qts, but both front/back, I was able to get in several ounces more than I was, when level !!

Probably not THAT IMPORTANT, but never hurts to have a LITTLE more fuid-

You can't go overboard, cause it'll seep outta seals or plug Breather tubes !!

It's a jungle out there !!

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Old 05-19-2011, 11:51 PM   #16
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I have Riddler diff covers, so I can easily put in the recommend amount - or way more and make a big mess.

On the fractional quarts I use the little window that runs down the bottle which is in ounces, which shows 32 ounces in the quart bottle, and .35*32 is about 11 ounces, and .375*32 is 12 ounces.

I also let it drain over night - just to get as much of the old stuff out as possible without taking the cover off.
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Old 05-20-2011, 08:45 AM   #17
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Heh Heh, well you're getting just about all ofit joe, what-


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Originally Posted by joe002 View Post
I have Riddler diff covers, so I can easily put in the recommend amount - or way more and make a big mess.

On the fractional quarts I use the little window that runs down the bottle which is in ounces, which shows 32 ounces in the quart bottle, and .35*32 is about 11 ounces, and .375*32 is 12 ounces.

I also let it drain over night - just to get as much of the old stuff out as possible without taking the cover off.
I do, is drive for 15 minutes to heatit all up, then open the drain plug and letit go for 10/15 minutes--

I get on the bumper and bounceit several times during that period, then fill with warmed valvoline, untill the fluid starts to come out the fill hole-

Then I drive around the block (once) and do my topoff in the angled driveway-

It'll all come out in the wash

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Old 05-20-2011, 08:53 AM   #18
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Give this a read and save it as a reference. It's how I learned to do mine. http://project-jk.com/jeep-jk-write-...hange-write-up
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Old 05-21-2011, 06:13 AM   #19
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That is the same site I used to do mine, Daggo. That site also has a lot of basic maintenance walk-through stuff for the JK's.
I already have the Tranny fluid one saved for when I tackle that in about 5k miles.

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