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Some questions about diff seals

Discussion in '2nd Gen. Tacomas (2005-2015)' started by JeffBoyardee, Sep 19, 2021.

  1. Sep 19, 2021 at 9:11 AM
    #1
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    I'm having some parts issues, and I feel like I'm losing my mind here. I've read in a number of threads that the seals on both sides of my diff are the same (2011 TRD OR). I got (2) 90311-47027. However, the seal is way too small for the passenger side. This parts diagrams seems to show the same seal in the photo, but 3 different seals down below. What am I missing?
    Screenshot_20210919-120003.jpg
    Screenshot_20210919-115950.jpg

    Side question,.on both sides, this pocket had loads of grease in it when I pulled the bearing out. I'm guessing this is grease seeped out of the old bearings? I can't seem to see a reason why it would need to be greased in there?

    IMG_20210919_115058.jpg
     
  2. Sep 19, 2021 at 10:07 AM
    #2
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    The driver and passenger differential seals are different parts and also require to be driven in at different depths.
     
  3. Sep 19, 2021 at 10:18 AM
    #3
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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  4. Sep 19, 2021 at 10:22 AM
    #4
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    Thank you. I'll call for the 47013 tomorrow. Can you tell me where to find information about the depths? I installed the driver's side already. I installed it so the outer edge of the seal is flush with the housing. That's where it looked like my old one was. I haven't installed the axle yet though, so I can still fix it.
     
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  5. Sep 19, 2021 at 10:29 AM
    #5
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    Passenger side
    upload_2021-9-19_13-25-30.jpg
    Mine ended up at 0.228", right on the edge of acceptance.
    9EA9F3AC-FB34-4E49-8A10-8358B11B9B9E_zps_a5d57944f6ed08ce855617c8d57c82aaca132bef.jpg


    Driver side, I would recommend you press in a bit further. They are known to leak if not driven to the correct depth. Very finicky seals.
    upload_2021-9-19_13-27-36.jpg
     
  6. Sep 19, 2021 at 10:30 AM
    #6
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    As far as the grease, that could have been previous owner when the bearings were last replaced, or just grease combined with contamination from a failed bearing.
     
  7. Sep 19, 2021 at 10:32 AM
    #7
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    Awesome, thanks for the depth info. Looks like that info was pulled from the FSM. Is there a database online anywhere?
     
  8. Sep 19, 2021 at 10:46 AM
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    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    It used to be available online but the link was taken down many years ago. If you PM me your email address, I can share a link from my google drive which you should be able to download.
     
  9. Sep 19, 2021 at 10:48 AM
    #9
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    Just hook me up with a coupon to one of these free cans and we'll call it even :thumbsup:
    overstuffed-italian-sausage-71746.png
     
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  10. Sep 20, 2021 at 5:57 AM
    #10
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    Chef Boyardee over Spaghetti-O's??? Im not sure i can trust your judgment.
     
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  11. Sep 21, 2021 at 3:54 AM
    #11
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    Dealership gives me 90311-47026 as a replacement for 47013. Is that correct? And if so, being that I can't find one and need my truck together, how are National seals? Supposedly 710595 is a replacement for 90311-47026.
     
  12. Sep 21, 2021 at 9:03 AM
    #12
    6 gearT444E

    6 gearT444E Certified Electron Pusher

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    That I'm not sure of, I'd assume they know correct. Last time I had to buy one it was the 47013.
    1b8cb346-2afd-4787-8efd-bde43e8d9d6a_zps_4ce6a3b4778da8c12b854597ef4e306597d734be.jpg

    Rock auto seems to confirm your suspicions so hopefully that they are the correct size. I have used national seals before and they are currently installed on my steering knuckle side where the CV goes into, I've had good luck with them. I'd assume their quality on the differential seal is the same.

    https://www.rockauto.com/en/moreinfo.php?pk=2480322&jsn=3
     
  13. Sep 28, 2021 at 9:13 PM
    #13
    6 gearT444E

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    I wanted to apologize I was looking back through my posts and I gave you some bum info. The seal depth I listed for the driver side I mistakenly posted the pinion flange depth. The driver axle seal is "flush with carrier". Hopefully I didn't cause you any leaks!
    upload_2021-9-29_0-12-57.jpg
     
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  14. Sep 29, 2021 at 1:49 PM
    #14
    JeffBoyardee

    JeffBoyardee [OP] Well-Known Member

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    Hmm, I don't seem to have any leaks. Think it's ok how it is if it's not leaking?
     
  15. Sep 29, 2021 at 4:08 PM
    #15
    6 gearT444E

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    my theory was if it wasn’t leaking leave it be. Sometimes, just removing and reinstalling a cv axle is enough to cause a leak, I don’t know why those seals are so finicky compared to others. Perhaps because of the small play and movement of the CV relative to the sealing surface.
     

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