Front differential leak

Discussion in 'General Discussion' started by Willmunny, Jul 14, 2017.

  1. Willmunny

    Willmunny Junior Member

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    There is some sort of device on my front differential that is leaking. It is on the passenger side and has a couple of hydraulic lines attached to it.
    The truck is a 2001 5.9l , slt. The 4wd seems to work correctly. I did not see anything in these forums when I looked. Thanks for any feedback
     
  2. Willmunny

    Willmunny Junior Member

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    4wd actuator, I think I found it lol
     
  3. Yeret

    Yeret The Village Drunk

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    Is it even possible for the actuator to leak? I've honestly never heard of that happening.
     
  4. Willmunny

    Willmunny Junior Member

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    Here is a photo, it smell like gear oil not motor oil
     

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  5. Yeret

    Yeret The Village Drunk

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    Have you checked the fluid level in your front diff? Pull off the plug and stick your pinky finger in there and set the first joint from the tip onto the bottom of the plug area and turn it down. If the tip of your pinky touches the oil, your level is fine. If it doesn't reach it, add oil little at a time until it does.

    Or, if you don't care to be that precise, just add oil until it just starts to spill over the fill hole. This is considered "over filled" for our axles but it's debatable if it will cause any real problem. If you're unlucky, oil will leak past the seals and create a little mess.
     
    Last edited: Jul 15, 2017
  6. dapepper9

    dapepper9 Senior Member

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    Yes it can leak. It's a metal-cored cork gasket. TBH, I made my own gasket and didn't have any issues but I would suggest new to somebody else. Problem is you can't buy it new. Have to get it as a piece of some other kit. Summit I believe has a kit that eliminates the actuation part of the actuator for like $30. Easy way to make your 4x4 easier to maintain and get the gasket. Or get it for the gasket and keep the other parts around for later if you're unsure about it
     
  7. Willmunny

    Willmunny Junior Member

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    Thanks for the information guys!
     
  8. BBartow

    BBartow Senior Member

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    You can buy just the gasket but I used rtv.
     

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