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Old 06-26-2014, 06:49 PM   #1
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Leaking Dark Fluid

Hey All,

This morning I pulled my 2004 Jeep Wrangler X out of my parking spot to find a dark stain. I appear to be leaking some sort of dark fluid. When I crawled under to investigate I found it seems to be dripping from my rear axel or my four wheel drive. I am not sure which is which.

I placed a piece of white paper under the leak and collected the drips. It appears to be a black color.

What could be the source and can anyone suggest a solution?
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Old 06-26-2014, 07:01 PM   #2
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Hey All, This morning I pulled my 2004 Jeep Wrangler X out of my parking spot to find a dark stain. I appear to be leaking some sort of dark fluid. When I crawled under to investigate I found it seems to be dripping from my rear axel or my four wheel drive. I am not sure which is which. I placed a piece of white paper under the leak and collected the drips. It appears to be a black color. What could be the source and can anyone suggest a solution?
the transfer case for your 4wd is up front. Is it directly under the pumpkin or toward the drivers side rear wheel?

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Old 06-26-2014, 07:04 PM   #3
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the transfer case for your 4wd is up front. Is it directly under the pumpkin or toward the drivers side rear wheel?
nevermind saw the first pic. Bad rear. Pinion seal. There is a YouTube video on how to change if you google it
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Old 06-26-2014, 07:51 PM   #4
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Okay. Thanks. That video looks like it is for what I have going on.

Follow up question. I was going on a trip this weekend. Just a short get away. I have to drive 50 miles to the destination then 50 miles back.

In your opinion, do you think I should get a fix before I go or do you think it could wait until after?

Thanks.
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Old 06-26-2014, 08:00 PM   #5
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Okay. Thanks. That video looks like it is for what I have going on. Follow up question. I was going on a trip this weekend. Just a short get away. I have to drive 50 miles to the destination then 50 miles back. In your opinion, do you think I should get a fix before I go or do you think it could wait until after? Thanks.
that's a tough one. Based on how much fluid leaded out you may want to replace it. You could pull the plug and top it off before you go and check it again before you leave. When you top it off take note of how much you put it. Keep in mind rear ends are not cheap
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Old 06-26-2014, 08:03 PM   #6
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Okay. Sounds good. Thanks for the information.
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Old 06-26-2014, 08:21 PM   #7
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Also transfer case in in the middle not up front. I was thinking of my truck
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Old 06-26-2014, 10:17 PM   #8
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Yes, bad pinion seal on your Dana 35 rear axle. Easy and cheap to replace if you have a basic socket set and a torque wrench.

I would just make sure the oil is full and drive it. You have two quarts of oil in there. How many days of dripping will it take to leak out 2 quarts? Quite a few days...

Top it off every once and a while and replace it when you get the time

75W-90 gear oil or somewhere close to that will work fine.

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