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My Differential Breather Mod Photos

Discussion in 'Technical Chat' started by David K, Sep 5, 2010.

  1. Aug 26, 2011 at 1:34 PM
    #141
    Crom

    Crom Time is precious; use it wisely

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    Use 6' of 1/4" fuel line, that stuff is bomber tough!

     
  2. Aug 26, 2011 at 2:16 PM
    #142
    tacoteacher

    tacoteacher Well-Known Member

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    Howdy fellow taco dudes. David K shows union part #90404-51026, while Crom shows #90404-51319. Why the difference? Are they interchangeable?
     
  3. Aug 26, 2011 at 2:33 PM
    #143
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    As the others did, I left some slack in the hose for axle flex, off roading... It is thick rubber and not against anything sharp. However, nothing wrong with examining it from time to time.
     
  4. Aug 26, 2011 at 2:34 PM
    #144
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    Crom's looks the same as what I used... I show the package from Toyota on the first photos... you can see the part number.
     
  5. Aug 26, 2011 at 2:43 PM
    #145
    Crom

    Crom Time is precious; use it wisely

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    I used David's part numbers when I ordered mine and I told the dealer how much they should cost based on David's cost and it was no problem.
     
  6. Aug 26, 2011 at 2:47 PM
    #146
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    [​IMG]

    Top thing is the 'union' that goes on the differential where the stock breather was. (-51319)

    Bottom thing is the 2-way breather that also is used for the front differential. (-03136)
     
  7. Aug 26, 2011 at 2:50 PM
    #147
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    No, here is my photo from this thread's first page:

    [​IMG]
     
  8. Aug 26, 2011 at 3:13 PM
    #148
    tacoteacher

    tacoteacher Well-Known Member

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    Ok. I'll go with David's part #s and cost. Thanks.
     
  9. Aug 30, 2011 at 10:27 AM
    #149
    Armsmaster

    Armsmaster Well-Known Member

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    Great Job... Thanks for the info...:cool:
     
  10. Aug 30, 2011 at 11:14 AM
    #150
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    You are welcome...

    I re-reading my procedures, I see I wasn't totally clear on how the contamination occurs. The stock breather is about 18" above ground, but when you go into water that deep, your axles are underwater first... and it is past the axle seals where muddy water can enter the diff. from a vacuum that a one way breather (the stock one) does not prevent.

    Using the front style diff. breather mounted up higher, prevents a vacuum and thus there is no trend to suck water past the axle seals and into the diff. Water does not enter through the stock breather, unless it is defective because it is a spring loaded, one way, exhaust valve.
     
  11. Aug 30, 2011 at 6:21 PM
    #151
    Canuckwithatruck

    Canuckwithatruck Well-Known Member

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    Being that I am from Canada I have concerns that in the cold winter months condensation would form inside of the "breather hose" subsequently freeze up and then not allow for proper flow. Does anyone else see this as a concern?
     
  12. Aug 30, 2011 at 8:38 PM
    #152
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Kragen HID, 1 Cibie Halogen.
    So what do you do with the front breather?

    Remember, we are only duplicating on the rear what Toyota already does on the front.

    If having a 2 way breather was 'bad', then Toyota would have an issue with EVERY 4WD Toyota that has a factory front breather on the end of a tube.
     
  13. Aug 30, 2011 at 8:49 PM
    #153
    DubVtundy

    DubVtundy ERMAHGERD

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    subbed doing this this weekend ordered my parts today
     
  14. Aug 30, 2011 at 9:02 PM
    #154
    stunt man hans

    stunt man hans displaced viking living in New Hampshire

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    great write up i ordered my parts from toyota and had the mod done before irene hit us saturday.

    lol i thought i better get off my ass and do this seeing as how i have a snorkel and the rear breather would kill any chance of a water crossing either elective or due to an emergency situation.

    the union though after i wrapped it in some teflon tape seems like it could be a bit tighter let me know if they are supposed to be that way.
     
  15. Aug 30, 2011 at 9:12 PM
    #155
    David K

    David K [OP] Well-Known Member

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    Mine felt 'normal' screwing it in by hand... snug fit and then a partial turn with the wrench... maybe 3 wraps of teflon tape on the threads.
     
  16. Aug 30, 2011 at 9:22 PM
    #156
    stunt man hans

    stunt man hans displaced viking living in New Hampshire

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    same for me mine just didn't go completely tight. thought it might be wrong but idk its on there i don't think i could get it off with my hands thats for sure.

    either way great write up buddy this completed my snorkel set-up i began back in june. i read your thread and said to myself i had better get on this in case something happened with the storm.

    btw how did you find out which union would work with the rear diff meaning how did you come across the part number?
     
  17. Aug 31, 2011 at 5:45 AM
    #157
    T@co_Pr3runn3r

    T@co_Pr3runn3r XXXXXXXXXXXXXXXXXXX

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    I think there is only a difference in the nipple size on the union parts. One has thinner size than the other but the threaded part is the same. So the hose fits tight on the breather if it fits the smaller union but both union and breather are same size using the other union part number.
     
  18. Aug 31, 2011 at 7:44 AM
    #158
    David K

    David K [OP] Well-Known Member

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    Mine wasn't the first thread on this mod, the older thread had part numbers... it was just getting so long and another set of numbers got flashed about... I like to de-confuse things with clear answers (not always possible)! I thought if I took a photo of the bag with the parts in it, who could mistake those numbers!? Yet, in this thread, somebody did!!! LOL
     
  19. Aug 31, 2011 at 5:52 PM
    #159
    PerfectTekniq

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    I figured I'd swing by Redlands Toyota to see if maybe they had a breather and union hanging around. Sure enough some guy ordered it like 4 days ago and never picked it up so I bought the current ones and they ordered another set for Mr. No Show.

    Working late tonight so I didn't think I would have a chance to get the house, did a quick Google search for "hose" and turns out a place across of the cul-de-sac i work at carried everything else I needed, and got it for free since I've helped them with things in the past. :D

    Might get a chance to do this tonight. :)
     
  20. Sep 1, 2011 at 4:32 AM
    #160
    T@co_Pr3runn3r

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    Who?
     
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