MAINTENANCE : Jeep JK Wrangler Differential Fluid Change Write-Up
- Thread starter wayoflife
- Start date
Yuriy
New member
Sounds good, thanks!!
Also, not everything went well :naw:
I have a purple cranium diff cover guard that uses 1/4 socket cap bolt, and some how I stripped one. How can I get it out, so I can replace the bolt?? HELP!!!
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OverlanderJK
Resident Smartass
The JK manual calls for 75W-90 doesn't it?
Edit, just checked and it does. 75W-90 is what is recommended. I can never find that though and use 80w-90 or higher.
Marauder
New member
From the online owners manual for my 2012:
Front Axle- MOPARGear&AxleLubricant(SAE80W-90)(APIGL-5)orequivalent.
Rear Axle- 226RBI(Model44)-MOPARGear&AxleLubricant(SAE80W-90)(API GL-5)or equivalent.
Fortrailertowing,useMOPARSyntheticGear&Axle Lubricant(SAE75W-140)or equivalent. ModelsequippedwithTrac-Lok™ requireanadditive.
Front Axle- MOPARGear&AxleLubricant(SAE80W-90)(APIGL-5)orequivalent.
Rear Axle- 226RBI(Model44)-MOPARGear&AxleLubricant(SAE80W-90)(API GL-5)or equivalent.
Fortrailertowing,useMOPARSyntheticGear&Axle Lubricant(SAE75W-140)or equivalent. ModelsequippedwithTrac-Lok™ requireanadditive.
H8ROADS
Caught the Bug
Yes, that is correct.
Just completed this in about an hour.
First off, thanks so much for the great photos and write-up on this one. My dealership wanted over $300 to do this simple maintenance, which amazes me as it was every bit as easy as an oil change.
I opted to just use the drain plug as shown in the photos as would have no idea what warning signs to look for anyhow if I were to be looking directly at the gears. Using a socket wrench with the stubby 3 inch extension worked perfect for extracting/installing the drain plugs on my Dana 44s. The fluid in the rear differential looked a bit like chocolate milk when it came pouring out, and the fluid in the front looked more like a dark amber honey. I replaced the fluid in both with 75w90 Mobil 1 Synthetic.
Filling the rear differential was simple. As for getting the fluid into the front differential, in my garage I found some 1/2 inch clear flexible hose that I had bought at Lowes and cut off a 8-10 inch piece which fit snugly over the Mobil 1 spout.
The my differentials with the factory covers seemed to only take between 1.33 - 1.5 quarts until they were full up to the fill holes.
Overall an easy project that cost me about $40 when all was said and done.
First off, thanks so much for the great photos and write-up on this one. My dealership wanted over $300 to do this simple maintenance, which amazes me as it was every bit as easy as an oil change.
I opted to just use the drain plug as shown in the photos as would have no idea what warning signs to look for anyhow if I were to be looking directly at the gears. Using a socket wrench with the stubby 3 inch extension worked perfect for extracting/installing the drain plugs on my Dana 44s. The fluid in the rear differential looked a bit like chocolate milk when it came pouring out, and the fluid in the front looked more like a dark amber honey. I replaced the fluid in both with 75w90 Mobil 1 Synthetic.
Filling the rear differential was simple. As for getting the fluid into the front differential, in my garage I found some 1/2 inch clear flexible hose that I had bought at Lowes and cut off a 8-10 inch piece which fit snugly over the Mobil 1 spout.
The my differentials with the factory covers seemed to only take between 1.33 - 1.5 quarts until they were full up to the fill holes.
Overall an easy project that cost me about $40 when all was said and done.
jknikos
Member
Hello to everybody,
I have a 2009 jk sport(x) with open diffs. I have changed my gears from 3.21 to 4.56. Does this affect the gear oil that i will use or not? Should i stick with the OEM spec? My manual says to use SAE 80W-90.
Note: I saw this question being posted before but couldnt find the answer in the thread.
I have a 2009 jk sport(x) with open diffs. I have changed my gears from 3.21 to 4.56. Does this affect the gear oil that i will use or not? Should i stick with the OEM spec? My manual says to use SAE 80W-90.
Note: I saw this question being posted before but couldnt find the answer in the thread.
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cozdude
Guy with a Red 2-Door
Welcome to Wayalife! stop by and give us a wave
http://wayalife.com/forumdisplay.php?11-Give-us-a-Wave
no it does not afferct the gear oil used so yes you can stick with oem spec 80w90
JLSilerJK
New member
Great write-up, thanks! I plan on doing this this week -09 (x) without any paperwork or an owners manual on the type of diffs. What is the additive the online manual speaks of? Am I correct in thinking that if I use the synthetic 75W90 I should be good to go and wont need to add anything else?
jknikos
Member
If you have an x probably you have open diffs so no additive is needed neither synthetic oil. In my manual (i have both open diffs) it say to use 80w-90.
jknikos
Member
I havent done the change yet, i will do it next week. Its not neccesary to use mopar, just any well-known brand.
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