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ARB Diff Breather install: Extra parts for install on 1st gen?

Discussion in '1st Gen. Tacomas (1995-2004)' started by JasonLee, Nov 24, 2018.

  1. Nov 24, 2018 at 1:56 PM
    #1
    JasonLee

    JasonLee [OP] Hello? I'm a truck.

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    I have the ARB 170112 Differential Breather Kit sitting in the parts bin and I'm going to install it on the next nice day that I can crawl around the truck on the street.

    Will I need any extra parts to install to my 2003 Doublecab 4x4 automatic?

    Initially, I'll be connecting up the rear diff and the automatic transmission.

    I know that both of those locations something like this one-way vent:
    [​IMG]

    I assume those need to be replaced with something like this:
    [​IMG]

    If that is the case, what is the thread size and pitch that I need to match?

    Eventually, I'll extend the existing front diff/transfer case breathers to connect to the ARB manifold so if you know those thread specs, that would be helpful as well.
     
    opteron likes this.
  2. Nov 24, 2018 at 2:02 PM
    #2
    02hilux

    02hilux Well-Known Member

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    another slow automatic
    point and go
    1/8"-28BSPT
     
  3. Feb 8, 2019 at 9:18 AM
    #3
    Firstgen619

    Firstgen619 Well-Known Member

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    Did you ever do the install looking to do mine soon have any pics or problems installing ?
     
  4. Feb 8, 2019 at 9:36 AM
    #4
    JasonLee

    JasonLee [OP] Hello? I'm a truck.

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    It's been single digits and snow on the ground here, so I haven't rolled around in the street to install it yet. I did buy a brass fitting from the hardware store that should work. I'll post up when I get it installed - hopefully this weekend.
     
  5. Feb 8, 2019 at 2:29 PM
    #5
    Firstgen619

    Firstgen619 Well-Known Member

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    Nice hell yeah let me know
     
  6. Feb 8, 2019 at 10:17 PM
    #6
    TacoDeAlex

    TacoDeAlex TTC #0177

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    I’ve been contemplating diff breathers, it’s good to have. Could you do a write up OP?
     
  7. Feb 8, 2019 at 10:56 PM
    #7
    JasonLee

    JasonLee [OP] Hello? I'm a truck.

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    Sure, here's you're write up: If you're considering it, you should know better. Do it already.

    Cheap way: bulk fuel line routed up to your gas filler cap area.

    Expensive way: ARB breather kit. Think way too much about the correct threading of a barbed fitting to replace the stock axle vent to extend the lines, let the ARB kit sit in your closet for almost a year. Purchase the "correct" brass barbed fitting to install into the axle with the ARB kit, but let that sit in your cupholder for 3 months. Upgrade your stereo and then get a reminder on this thread that you still haven't installed the diff breather kit. Look outside at the single digit temps and think to yourself, "Well, I'm just driving around in salty shitty roads. I can put this off for a few more months.". Continue to let that $80 ARB kit sit in the closet.
     
    Last edited: Feb 9, 2019
  8. Feb 9, 2019 at 7:05 AM
    #8
    Sicyota04

    Sicyota04 Slowly but surely.

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    TacoDeAlex likes this.
  9. Feb 9, 2019 at 9:40 AM
    #9
    Area51Runner

    Area51Runner Well-Known Member

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    OME 881|Dakars w/AAL|Nitros|SPC UCAs|255/85s on 3rd Gen 4Runner 5 Star Wheels | ARB Bull Bar Bumper|Cheap eBay Snorkel ARB knockoff|Leer 100r Cap with a modded Yakima Loadwarrior basket|Diff Breather Extension|
    bunch already here on TW. Here is a good one (and yes, its a 2nd gen but its essentially exactly the same)

    https://www.tacomaworld.com/threads/my-differential-breather-mod-photos.111954/

    Toyota union 90404-51319
    Toyota breather 90930-03136

    Source it at your local dealer or order from @gunny1005 or you can improvise but the cost is cheap enough, I ordered the OE parts. Source the tubing locally.
     
    TacoDeAlex likes this.
  10. Feb 9, 2019 at 10:58 AM
    #10
    jbrandt

    jbrandt Well-Known Member

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    I just got the parts off Amazon:

    https://www.amazon.com/gp/product/B01MTMXM2O/ref=ppx_yo_dt_b_asin_title_o09__o00_s00?ie=UTF8&psc=1
    https://www.amazon.com/gp/product/B01H79JUQQ/ref=ppx_yo_dt_b_asin_title_o09__o00_s00?ie=UTF8&psc=1
    https://www.amazon.com/gp/product/B01FSZ9YY4/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1

    I put mine in the gas filler. Took like 10 minutes.
     
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  11. Feb 9, 2019 at 10:59 AM
    #11
    TacoDeAlex

    TacoDeAlex TTC #0177

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  12. Feb 9, 2019 at 11:01 AM
    #12
    jbrandt

    jbrandt Well-Known Member

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    No, those are already routed fairly high in the engine compartment. I suppose you could rout them even higher if you really wanted, but it's not necessary.

    Mine are on the driver side, right under the brake master cylinder.
     
  13. Feb 9, 2019 at 3:37 PM
    #13
    JasonLee

    JasonLee [OP] Hello? I'm a truck.

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    Sure, but the point of my thread is to find out what the threading is and not just buy the random union part since I have a hardware store with lots of good hardware and I can ensure the tubing will fit.

    I can't remember which one isn't extended up to the engine bay, but it's either the transfer case or transmission that only has one of the one-way valves on top like the rear axle. I am planning on extending this as well to the ARB breather.
     
  14. Feb 9, 2019 at 4:40 PM
    #14
    jbrandt

    jbrandt Well-Known Member

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    See my post with the links, that's the one you want.

    That's true, there are only 2 breathers in the engine bay... might be the t-case... ??
     
  15. Feb 9, 2019 at 5:51 PM
    #15
    Area51Runner

    Area51Runner Well-Known Member

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    yep and was just giving a quick reference since he was looking for a write up and yours is still in the works. :hattip:
     
    JasonLee [OP] likes this.
  16. Feb 22, 2019 at 5:43 PM
    #16
    TWTaco

    TWTaco Well-Known Member

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    STUFF!
    The breather is a one way breather you need a 2 way breather for this to work correctly
     

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