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2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

Leaky Differential

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Old Dec 31, 2015 | 07:38 PM
  #11  
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Originally Posted by kdm06d
Seriously, that oil is expensive!
Yeah that's no lie. For the price per bottle it should install itself.
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Old Dec 31, 2015 | 08:36 PM
  #12  
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Yup. Its the pinion seal. Checked it today. I park on a hill so that line on the differential is even with the height of the leak at the pinion
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Old Dec 31, 2015 | 09:02 PM
  #13  
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My first move would be to hose it down with brake cleaner and see if it comes back.
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Old Dec 31, 2015 | 10:15 PM
  #14  
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Originally Posted by Toshbar
My first move would be to hose it down with brake cleaner and see if it comes back.
thats another good idea. Im going to try that
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Old Jan 1, 2016 | 05:23 PM
  #15  
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While Im down there i want to pull the differential vent hose to make sure it isnt clogged. Does anyone know does that hose just pull off? It goes down into a nut and then the brake lines run through the block its connected to. Do i need to loosen up that nut? Just dont wanna screw it up and have to bleed the brakes

Can upload a pic too if i need to
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Old Jan 1, 2016 | 07:14 PM
  #16  
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Should just be slipped over a barbed nipple or something like that.
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Old Jan 1, 2016 | 07:52 PM
  #17  
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Aa
Attached Thumbnails Leaky Differential-image-1285229987.jpg  

Last edited by kdm06d; Jan 1, 2016 at 08:28 PM.
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Old Jan 2, 2016 | 12:28 AM
  #18  
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The diff breather is not referenced in the above picture.
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Old Jan 2, 2016 | 09:39 AM
  #19  
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Should slip right off in theory but I'm sure it's gotten weathered on there over the years.
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