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2013 front diff fluid appearance

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Old Dec 5, 2024 | 03:17 PM
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2013 front diff fluid appearance

This is what my front diff fluid looks like 1,000 miles after being changed.

was suctioned out since it’s a 4x4.

145k miles. Upstate NY

did not enough get sucked out and this is leftover marking ? Or is it water intrusion or????

thanks.

 
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Old Dec 5, 2024 | 04:56 PM
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that is usually an indication of failed clutch packs or gears
 
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Old Dec 5, 2024 | 07:04 PM
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Originally Posted by tjc transport
that is usually an indication of failed clutch packs or gears
interesting as the fluid taken out 1k miles ago was “normal” and now this.
 
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Old Dec 6, 2024 | 05:51 AM
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If this is what it looks like after 1K miles after change, either the wrong fluid was used or something catastrophic has occurred during use and should have been obvious at the time.
 
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Old Dec 6, 2024 | 06:36 AM
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Originally Posted by 2015 F-350
If this is what it looks like after 1K miles after change, either the wrong fluid was used or something catastrophic has occurred during use and should have been obvious at the time.
zero sounds when putting in 4H.

Used this fluid.



 
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Old Dec 6, 2024 | 06:37 AM
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If it stops snowing and blowing I will check the vent tube. Lots online saying underbody car washes will get into it. I go through 4-6 times a month.
 
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Old Dec 6, 2024 | 07:09 AM
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and why does the manual say to add friction modifier when there are no clutch packs?

I know Valvoline i used doesn't need it, but figured I have to ask!
 
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Old Dec 6, 2024 | 11:48 AM
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Just to confirm, That’s grey or silver color, right?
 
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Old Dec 6, 2024 | 02:00 PM
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Originally Posted by 2015 F-350
Just to confirm, That’s grey or silver color, right?
battleship grey. I pulled the plug but had to be on ramps to get my fat *** under there. Sure enough that’s some ugly ****.

so I will sleep better tonight, I went to the Valvoline instant oil change place. Yes I know that is sacrilegious.
Loving these Valvoline guys. They are flushing it and said they will keep a cup of the fluid to see if it separates. Then I can come back in a few days and they will check the level and color for free.



Not bad for $108 with tax.

local shop near me says book time is 4.9 hours if I want to remove the cover
 
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Old Dec 6, 2024 | 02:10 PM
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Originally Posted by tjc transport
that is usually an indication of failed clutch packs or gears
would it work properly? It currently is.

it’s the lariat don’t has the fancy BS 4A and 4H
 
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Old Dec 21, 2024 | 12:05 PM
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Went back today and looked at the cup of fluid they kept.

it separated.

about 60% thick grey ugly and 40% actually looking like oil (even though I expected it to be greener).

4A and 4H seem to work just fine.

hopefully not failed clutch packs. Not sure how I can be getting water intrusion, if that’s it. I do have the usual front axle seal weep and use automated car wash.

vent hose is good condition and routed properly.
 
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Old Dec 26, 2024 | 10:06 AM
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running her in 4A most of the time and some 4H when (almost) needed.
 
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