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  #13  
Old 05-20-2011, 01:10 PM
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Re: Rear Differential Fluid Change

^^^^^^ +1
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  #14  
Old 05-20-2011, 04:51 PM
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Re: Rear Differential Fluid Change

Quote:
Originally Posted by jes_96 View Post
FWIW - it's not the brake cleaner itself that causes the problems per se; it's the fact that you're drying out all the lubricated parts when the brake cleaner is wiped off and/or evaporates. When you fill it back up, it takes a little while for the gear oil to work its way into all the nooks and crannies; meanwhile, the bearings, gears, et cetera are running metal on metal. Not good.

Also, the Redline 75W140 works great and already has the limited slip modifier in it.

Also, also, harborfreight.com has a vast array a specialty tools. Got all of my one-off allen wrench sockets and what-not delivered to my door. Got the whole set of hexes for less than $20.

http://www.harborfreight.com/9-piece...7880-html.html
I got that set at habor freight but the area is too tight to fit the socket to the wrench I can use it to take off the drain plugs on the front and transfer case.
I was reading that the 2005 WK manuel had ATF+4 fluid to use in all transfer case. But that is wrong, I am thinking that when my dealership did this the first time I think they put in the Transmission ATF 4 fluid in my transfer case. I was looking at my old ticket and it had Gear lube 2qty Lubricant gear 5qty and fluid auto tran 3 qty. I will find out if they put the wrong stuff in my transfer case saturday morning. I hope not. I will let you guys know.

Later
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  #15  
Old 05-20-2011, 05:47 PM
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Re: Rear Differential Fluid Change

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Originally Posted by ChrisWk View Post
....Hey Walt,
How much diff fluid does the front one take, I got two quarts of for the front is that enough. I put two quarts in the rear. does the front one need the mopar friction stuff too. Thanks for telling me where to get the 14mm wrench.
Chris
You are quite welcome. I always feel better patronizing a local business that carries American-made products.

Two (2) qts of Mobil-1 75W-140 is enough. MOPAR friction modifier is necessary for QD-II axles. Put the friction modifier in first, then fill it with the 75W-140 gear lube until it overflows.
Reference: http://www.wkjeeps.com/wk_maintenance.htm#FAXLE

Notes:
1. I drained and measured how much came out (because I'm anal about lubrication). Should be about 2 qts. As a starting point, you can put your finger in the top hole before changing to see if it's approximately full.
2. Never hurts to warm it up before changing the gear lube.
3. I took the splash plate off so I could inspect the area. Luckily I caught a rear transfer case seal failing and had it replaced before it became a big problem.
4. You'll need a quart-sized pump to go into the Mobil-1 75W-140 bottle to get the new fluid back in because the area is so tight. They cost ~$8.
5. After driving for one day, I re-checked the level (anal stuff again).

Have fun.
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  #16  
Old 05-21-2011, 01:00 PM
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Unhappy Re: Rear Differential Fluid Change

Well, I worked on the TRANSFER CASE, A big pain in my ass, I had zero problem draining out the fluid which look very clean looking, Wish I did not change it. So I go to fill it up and I put about 1 quart and about 8 ozfrom the second bottle in and it starts coming out the the fill plug so I stopped. How the heck am I going to get it to fill up if it keeps coming out??? It also looks like I will have to buy a another quart so that is full.
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  #17  
Old 05-21-2011, 06:56 PM
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Re: Rear Differential Fluid Change

Don't know which T-case you have, but normally you fill it up until it overflows with the car level. When it starts to overflow, you know that the level is ok.
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  #18  
Old 05-21-2011, 07:22 PM
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Re: Rear Differential Fluid Change

Quote:
Originally Posted by ChrisWk View Post
...I worked on the TRANSFER CASE....the fluid ... looked very clean... So I go to fill it up and I put about 1 quart and about 8 ozfrom the second bottle in and it starts coming out the the fill plug so I stopped. How the heck am I going to get it to fill up if it keeps coming out??? It also looks like I will have to buy a another quart so that is full.
Check it again tomorrow. If it needs more MOPAR NV245/247 TRANSFER CASE Fluid, you can add some. Maybe park slightly down hill in your driveway if you are anal (like me).

I have read that, sometimes, not all of the transfer case oil drains out, so the full measure may not go back in. On the positive side, you stated that it looked very clean, so it's probably not an issue if 3/4 of the total volume is new with fresh additives...
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  #19  
Old 05-21-2011, 09:02 PM
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Re: Rear Differential Fluid Change

Quote:
Originally Posted by Walt View Post
Check it again tomorrow. If it needs more MOPAR NV245/247 TRANSFER CASE Fluid, you can add some. Maybe park slightly down hill in your driveway if you are anal (like me).

I have read that, sometimes, not all of the transfer case oil drains out, so the full measure may not go back in. On the positive side, you stated that it looked very clean, so it's probably not an issue if 3/4 of the total volume is new with fresh additives...
Thanks , I am anal about getting the right amount in. I used the oil pan to drain into so I did not get a good mearsurement like I did with the rear diff. I would left to alone but I found my receipt when the stealership did it and they had part number for the trans fluid on the ticket so I thought I better change it if they put the wrong stuff in. Ithink I will do the incline thing I got ramps I guess I could drive the rear tires up on there to check it.

ChrisWk
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Old 05-22-2011, 07:44 PM
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Re: Rear Differential Fluid Change

Quote:
Originally Posted by Galaxie500 View Post
Do Not do this.
Can I ask why not?

EDIT: read a few posts down and realized what you said. A lot of guys at shops do this which makes me wonder why they do this if its bad?
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Old 05-23-2011, 01:40 PM
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Re: Rear Differential Fluid Change

Quote:
Originally Posted by ChrisWk View Post
I got that set at habor freight but the area is too tight to fit the socket to the wrench I can use it to take off the drain plugs on the front and transfer case.
I was reading that the 2005 WK manuel had ATF+4 fluid to use in all transfer case. But that is wrong, I am thinking that when my dealership did this the first time I think they put in the Transmission ATF 4 fluid in my transfer case. I was looking at my old ticket and it had Gear lube 2qty Lubricant gear 5qty and fluid auto tran 3 qty. I will find out if they put the wrong stuff in my transfer case saturday morning. I hope not. I will let you guys know.

Later
Ah, yes indeed. I should have elaborated a bit more. I placed the socket in to the plug, then used a 14 mm open end wrench on the socket. Worked great.
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Old 05-23-2011, 03:05 PM
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Smile Re: Rear Differential Fluid Change

Well I finished up the transfer case and front diff today, I cheated and took it up the road to the place that did my brakes Lee Auto Care. I was just a pint short in the transfer case and I had them do the front diff to for a total cost $15 bucks. I think if my jeep was not lowered and had the srt bumpers side skirts I think I could have done it myself oh well. I will say if you do it yourself put a 90 degree elbow on the end of the pump hose and rest it on the diff hole and shoot it in that make alot easier job to put in the fluid. The guy doing put the fluid in a pump sprayer pumped it right in it had a 90 on the end of the sprayer.

So I think am good on all my mainteince stuff on my jeep for now. By now I am selling my car letting someone else do all the fluids spark plugs and what not, but I will have this jeep for years to come so I got to keep it running.
Thanks guys for all the help this thread should help other fluid changing guys too.

Chris
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Old 02-14-2012, 10:06 PM
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Re: Rear Differential Fluid Change

what kind of fluid did u put in and i have a 2007 jeep wk laredo 2wd rear diff what kind of fluid and how much do i add and and additives needed?
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Old 02-15-2012, 04:13 AM
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Re: Rear Differential Fluid Change

I did my transfer case and it looked clean, how did the diff look?
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