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DIY: Rear Differential Breather Mod

Discussion in '2nd Gen Tundras (2007-2013)' started by csuviper, May 25, 2016.

Page 4 of 11
  1. Feb 22, 2018 at 1:45 PM
    #91
    dcsleeper408

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    Just get the oem one part # listed.
    He is just trying to see if the fittings he has laying around might work.
     
    dcsleeper408, Feb 22, 2018
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  2. Feb 22, 2018 at 3:09 PM
    #92
    Sunnier

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    Sunnier Pity the warrior that slays all his foes

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    Yep, I know it. I was offering to measure the OEM one I have in hand.
     
    Sunnier, Feb 22, 2018
    #92
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  3. Feb 22, 2018 at 3:13 PM
    #93
    Tracker

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    Has anyone else gone with the red tubing? I really like the looks of it.
     
    Tracker, Feb 22, 2018
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  4. Feb 22, 2018 at 3:29 PM
    #94
    dcsleeper408

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    my bad misunderstood*
    Its a bspt thread pitch or something unique like that.
     
    dcsleeper408, Feb 22, 2018
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  5. Feb 22, 2018 at 4:45 PM
    #95
    Mountun Goat

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    I don’t really know how to measure it haha. I’ll just pull my out and compare when I get motivated to do it. Thanks for offering
     
    Mountun Goat, Feb 22, 2018
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  6. Feb 22, 2018 at 4:52 PM
    #96
    dcsleeper408

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    Thread pitch tool.
    But you will see if they don’t line up thread for thread. Some are really close, some are just super obvious.
     
    dcsleeper408, Feb 22, 2018
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  7. Feb 22, 2018 at 5:11 PM
    #97
    Mountun Goat

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    @dcsleeper408 that makes sense. I’ll just lay the two together and check. Too bad the whole world didn’t just have one thread type haha
     
    Mountun Goat, Feb 22, 2018
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  8. Feb 22, 2018 at 5:23 PM
    #98
    dcsleeper408

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    Right..?
    Make us buy metric AND standard tools.. complete bullshit..
     
    dcsleeper408, Feb 22, 2018
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  9. Feb 22, 2018 at 6:06 PM
    #99
    Sunnier

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    Sunnier Pity the warrior that slays all his foes

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    No problem.
     
    Sunnier, Feb 22, 2018
    #99
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  10. Feb 22, 2018 at 6:27 PM
    #100
    Sunnier

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    Sunnier Pity the warrior that slays all his foes

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    What is cool, is that maybe all Toyotas use this same diff union. :notsure: I got one to put on the Tundra then bought a 2001 4 Runner and (lucky me because I'm taking it out this weekend), the same part fits both. So I did the 4 Runner first and got another to put into the Tundra.
     
    Sunnier, Feb 22, 2018
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  11. Feb 22, 2018 at 6:29 PM
    #101
    dcsleeper408

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    Yeah I believe the thread pitch is the same for the housings. Same one fit in my tacoma :thumbsup:
     
    dcsleeper408, Feb 22, 2018
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  12. Feb 22, 2018 at 6:46 PM
    #102
    15whtrd

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    Haha almost! But went black to make it look factory.
     
    15whtrd, Feb 22, 2018
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  13. Jul 13, 2018 at 11:38 AM
    #103
    Bo-Hunter

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    Bo-Hunter, Jul 13, 2018
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  14. Jul 13, 2018 at 11:56 AM
    #104
    Pale_Horse

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    Pale_Horse, Jul 13, 2018
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  15. Jul 13, 2018 at 1:06 PM
    #105
    GodlessPro

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    GodlessPro, Jul 13, 2018
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  16. Jul 13, 2018 at 1:24 PM
    #106
    joonbug

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    There's a lot of dirt and dust flying around behind the taillights. Do you want a 2-way there? I'd be worried about dirt and dust getting into the diff. The original wasn't a 2 way, why would we need a 2 way at the end of the hose?
     
    joonbug, Jul 13, 2018
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  17. Jul 13, 2018 at 1:34 PM
    #107
    GodlessPro

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    @BlueBottle explained it, I think it was him. Without the two-way you aren't solving the vacuum problem when you rapidly cool the diff by submerging it in water.
     
    GodlessPro, Jul 13, 2018
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  18. Jul 13, 2018 at 1:35 PM
    #108
    joonbug

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    The vacuum is only a problem when it sucks in water. That's why we put the hose there to get it away from the water. With the 2-way, now you're just vacuuming in dust into your diff.
     
    joonbug, Jul 13, 2018
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  19. Jul 13, 2018 at 1:38 PM
    #109
    GodlessPro

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    No it is a problem with creating a pressure differential that encourages water to go through cracks and seals, rather than air going through a two way breather. Something like that.
     
    GodlessPro, Jul 13, 2018
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  20. Jul 13, 2018 at 1:40 PM
    #110
    GodlessPro

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    From the ARB part description "This vacuum will tightly close the valve shut causing air to be instantly drawn into the assembly through the seals. Many times the seals are still submerged below water, leading to the water being drawn into the drivetrain. This will contaminate the oil and possibly damage drivetrain components or your Air Locker."
     
    GodlessPro, Jul 13, 2018
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  21. Jul 13, 2018 at 1:41 PM
    #111
    GodlessPro

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    But your comment makes me think adding a filter to the breather would be a good idea.
     
    GodlessPro, Jul 13, 2018
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  22. Jul 13, 2018 at 1:45 PM
    #112
    GodlessPro

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    How will it suck in air if you use a one-way breather?
     
    GodlessPro, Jul 13, 2018
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  23. Jul 13, 2018 at 1:48 PM
    #113
    GodlessPro

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    That is completely different and what I'm starting to think is a good idea.
     
    GodlessPro, Jul 13, 2018
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  24. Jul 13, 2018 at 2:07 PM
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    Pale_Horse

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    There are several different conversations happening here. Or maybe I am just confused.

    1) the oem is one way, the breather does not let air in, only out. (Correct?)

    2) the water therefore is not being sucked in by the breather but rather (or in addition to?) is being sucked in thru the seals. In which case, simply relocating the stock breather does nothing to solve.

    3) if the oem breather is truly 1 way (out only) then using a filter is moot.

    4) if you run a 2way then you should run a filter...

    Idk, but it Looks like I will be ordering a 2way to replace the oem i relocated. Then I will be draining my diffs and see, since I have sat in some deep ass water as is...
     
    Pale_Horse, Jul 13, 2018
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  25. Jul 13, 2018 at 2:11 PM
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    GodlessPro

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    Looks like you captured it correctly. That is based upon my current understanding which isn't necessarily correct.
     
    GodlessPro, Jul 13, 2018
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  26. Jul 13, 2018 at 2:20 PM
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    joonbug

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    Oh ok. That makes sense. But I would definitely use some kind of filter if using a 2 way. Last time I took my taillight off there was more mud/dirt/dust back there then on my dirty truck. I'm just gonna leave mine as is for now. Got too much other crap I need to work on. I would think there is enough air in the hose for the diff to suck on even with a 1 way. Hose might look like this though...
    sucked in face.jpg
     
    joonbug, Jul 13, 2018
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  27. Jul 13, 2018 at 2:21 PM
    #117
    BlueBottle

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    BlueBottle not a PRO

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    To a T!

    That’s also why I have the arb kit. Relocates it with a filter so no need to worry about anything!
     
    BlueBottle, Jul 13, 2018
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  28. Jul 13, 2018 at 4:14 PM
    #118
    dcsleeper408

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    Fronts run the same breather as the one listed. dirt/mud and dust in the bay too.
     
    dcsleeper408, Jul 13, 2018
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  29. Jul 13, 2018 at 4:53 PM
    #119
    Ike74

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    From what I understand, the breather is where the air comes from. Basically, when the diff cools it creates a vacuum and the breather releases the vacuum. So by raising the breather up, once the vacuum occurs the breather opens up and lets air in to equalize the pressure.

    I am no expert, this is what I found on the inter-webs
     
    Ike74, Jul 13, 2018
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  30. Jul 13, 2018 at 9:13 PM
    #120
    csuviper

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    csuviper [OP] Moderator Staff Member

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    The arb is just a filter with splash guard
    “The air filter is the ARB compressor air filter, which is a splash resistant air filter with a washable high flow sintered bronze filter”

    D28C9F81-EF61-41CE-8C4D-7E7F5431CC47.jpg
     
    csuviper, Jul 13, 2018
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