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DIY: Differential Breather Extension

Discussion in '1st Gen. Tacomas' started by Toy4Life, Sep 25, 2008.

  1. Nov 20, 2012 at 7:18 PM
    #101
    RangerNelson

    RangerNelson Active Member

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    5100's on front, Rear diff breather relocation mod, 265/76/16 Duratracs, Emergency Lighting, Other Fun stuff
    Did the rear diff breather today. Happy with how it turned out.

    [​IMG]
     
  2. Jan 22, 2013 at 6:31 AM
    #102
    TIPICOTACO

    TIPICOTACO Well-Known Member

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    I did this mod last year, but recently have been seeing quite a bit more water crossings and deep puddles...

    How do I know that the breather is working?? Is it possible to test it? or would it be obvious if it wasn't working??

    thanks
     
  3. Jan 22, 2013 at 12:32 PM
    #103
    DSully72

    DSully72 Well-Known Member

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    im still confused about what i need to buy as far as the breather that comes out in the gas door compartment... some people say different things. so someone that knows what they are talking about can you please explain to me what i need to get to do this mod and why?
     
  4. Jan 22, 2013 at 1:47 PM
    #104
    taco47001

    taco47001 Newborn

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    3" Lift (Billies 5100 front and back), Toytec springs, All Pro 3" Standard Pack, LR UCA's, Diff Drop, SCS F5's, 265/75/16 Treadwright Wardens, Rear Diff Breather, pinch weld mod, Morimoto Projector retro w/ amber halo's, grey wire mod, Elite front bumper....so far....
    It's pretty easy. The "why" is so when you ford across water deeper than the top of your rear diff...water doesn't enter the rear diff.
     
  5. Jan 22, 2013 at 2:47 PM
    #105
    DSully72

    DSully72 Well-Known Member

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    What I meant was what type of breather and why do I use that breather? People are arguing about getting some 2 way breather or something. Why can I not use the stock breather? What's wrong with that one?
     
  6. Mar 20, 2013 at 10:26 AM
    #106
    w00dy

    w00dy Hey Now!

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    The stock breather is threaded on the side that goes into your diff. Trying to push the tubing and secure it to the threads is not a good option. Thats why people buy a new breather that's barbed as opposed to threaded. Make sense?


    Look at the top two breathers in the pic below. The one to the right is what is in your diff stock and the left is the one people buy to put in its place (usually in the gas filler pocket)
    [​IMG]
     
  7. Mar 20, 2013 at 2:22 PM
    #107
    DSully72

    DSully72 Well-Known Member

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    i knew that lol jk. thanks woody. but other than the threaded part and the part on the other one that you put the hose over, its the same thing right?
     
  8. Mar 29, 2013 at 8:20 AM
    #108
    kurts74

    kurts74 Active Member

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    Deavers J59 Camburg UCAs Icons front and rear Allpro 1.5" shackles Centric powerslot rotors Centric pads Diff breather extension Hard candy shell
    Does anyone know for sure if the front differential breather is two-way for a 1st gen tacoma (Part NO.: 90930-03136)?

    Has anyone had temporary leaky seals? I was down in the heat when my passanger rear seal started to leak. I limped it back up to the mountains, checking frequently along the way to see if it was still leaking and it had stopped early on. At this point I am going to assume it was due to a dirty breather and keep an eye on it. Or should I pull it and just replace the seals/bearings?

    Peace out.
     
  9. Sep 19, 2013 at 5:46 PM
    #109
    2004Yotadtc

    2004Yotadtc Well-Known Member

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    Where did you get the union went to orielys auto zone no luck
     
  10. Mar 8, 2014 at 9:20 PM
    #110
    Yoda the Taco

    Yoda the Taco Well-Known Member

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  11. Mar 8, 2014 at 9:29 PM
    #111
    emeraldcity

    emeraldcity Active Member

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    You just resurrected a six month old post I'm guessing he figured it out by now
     
  12. Apr 11, 2014 at 10:04 AM
    #112
    Madjik_Man

    Madjik_Man The Rembrandt of Rattle Can

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    Questions for 1st gens:

    1. Do you have to mount the new two-way breather vertically for it to work?

    2. If you mounted it behind the gas filler door, have you noticed water getting in from washings/rain/snow melt/etc? Have you noticed any dust/dirt getting in?

    3. Is there an alternative place to mount the new breather, eg rear storage cubby?

    4. How much extra slack in the tubing do you think I need if I'm installing Dakar leafs + AAL in the rear?

    Thanks in advance
     
  13. Apr 11, 2014 at 2:16 PM
    #113
    Trapperr

    Trapperr Well-Known Member

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    On my 02 I ran it up and put the nipple of the little inline filter through a hole in the sheet metal that runs across the under side of the bed, as in it goes across the bed wheel to wheel. That may be confusing but if you get under there and look under the bed, above the axle you'll see it.

    The keep it from coming out of the hole I took a 3-4" piece of the same tubing I used from the diff to the breather filter and pushed it over the exposed nipple on the filter. I don't go mudding or cross water that deep as it would already be flooding the cab.

    The reason I did this mod to begin with was my rear axle seal leak. Since this mid, my leak has slowed to almost nothing (yes it's topped off with gear oil).

    Hope that wasn't too confusing
     
  14. Apr 17, 2014 at 9:00 AM
    #114
    Coppertone

    Coppertone Well-Known Member

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    Why not this?
    [​IMG]
     
  15. Apr 17, 2014 at 10:44 AM
    #115
    dispatch55126

    dispatch55126 Well-Known Member

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    While an expansion chamber would work, you're also hoping that:

    1. The plastic wouldn't fatigue and crack due to age, temp, environment
    2. The road or trail debris won't puncture the chamber
     
  16. Apr 17, 2014 at 10:47 AM
    #116
    Trapperr

    Trapperr Well-Known Member

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    How does that work? I'm not familiar with it
     
  17. Apr 17, 2014 at 10:50 AM
    #117
    Coppertone

    Coppertone Well-Known Member

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    All of these concerns also occur 8' of hose, fittings, hose clamps, etc. No need to run all of that with a simple expansion/accordion style setup like this.
     
  18. Apr 17, 2014 at 10:56 AM
    #118
    dispatch55126

    dispatch55126 Well-Known Member

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    True, you can still get a branch above the axle and rip out the line but overall, a reinforced fuel line will be more durable that plastic with flex (fatigue) lines. Also, and I don't know the answer to this, is that a closed system will only allow a specific amount of volume expansion. If you're driving through temperature extremes or significant elevation changes, you could overwhelm the expansion chamber.
     
  19. Apr 17, 2014 at 10:57 AM
    #119
    dispatch55126

    dispatch55126 Well-Known Member

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    Its a simple expansion chamber. Like a balloon, as the axle heats up, expanding gases will expand the chamber. As the chamber cools, the chamber will contract.
     
  20. Apr 17, 2014 at 11:01 AM
    #120
    Trapperr

    Trapperr Well-Known Member

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    Ahhhh I see. I kinda figured but didn't want to assume. Thank you.

    My first thought was "What if the rear end emits more pressure than the chamber can hold?"

    Seems the best way would be to mimic the original design of venting off the pressure, only make it more efficient.
     
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