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DIY: Differential Breather Extension

Discussion in '1st Gen. Tacomas (1995-2004)' started by Toy4Life, Sep 25, 2008.

  1. Aug 5, 2017 at 8:54 PM
    #201
    Uscgamecock7

    Uscgamecock7 Well-Known Member

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    Where are the automatic transmission breather and the transfer case breather? Cant find them anywhere!! Help
     
  2. Aug 8, 2017 at 8:44 AM
    #202
    ClevSix

    ClevSix Well-Known Member

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    I'm not near my truck to take a picture but there are two breathers in the engine bay on the inside of the drivers side wheelwell ... i think... one should be the front dif the other should be the transmission. I could be wrong so if you don't fine them there wait for someone to correct me.
     
  3. Aug 12, 2017 at 8:25 AM
    #203
    BlackSportD

    BlackSportD Well-Known Member

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    About to do this mod and yeah looks like just the rear is applicable for 1st gens, I didn't trace the front two from the engine bay but they are using the same caps as the rear diff. There is only two though, so wondering where the third is (as tranny, front diff and transfer case should have one each right?)
     
  4. Aug 13, 2017 at 6:10 AM
    #204
    ClevSix

    ClevSix Well-Known Member

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    One would think that each has a breather but that is not necessarily the case. The transmission and T-case could share one or in my case, I have a auto so it may use the dipstick as a breather. I'm not sure how it is setup on our trucks. I extended the rear diff breather and called it good enough.
     
  5. Nov 5, 2017 at 10:28 AM
    #205
    Cid

    Cid ╭∩╮(◣ _ ◢)╭∩╮

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    Older thread but the 5spd trany breather is on the front of the plate the shifter mounts to (shifter sub assembly). My breather was clogged and blew the seal in between that sub assembly and the trany. Looks pressed in so I see people just yanking the cap and clamping a hose and just following the route of the transfer case breather.
     
    Last edited: Nov 5, 2017
  6. Jan 11, 2018 at 9:24 AM
    #206
    dorkknight

    dorkknight Well-Known Member

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    Finally did my diff breather. Just zip-tied the new breather valve on the inside of the fuel door opening. That way it’s straight up and down, and out of the way.
    Anyone see any potential problems with this location?

    499FB6BD-54A4-444F-AC5F-D5974FE035F6.jpg
    AFC7BC9F-2702-4428-BFAA-878830A59F8A.jpg
    7566EEA3-5DF1-421F-940B-FCE6BA5FF03C.jpg
     
  7. Jan 11, 2018 at 4:56 PM
    #207
    BlackSportD

    BlackSportD Well-Known Member

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    dorkknight likes this.
  8. Jan 11, 2018 at 5:17 PM
    #208
    dorkknight

    dorkknight Well-Known Member

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    Thanks!
     
    NeonTaco likes this.
  9. Feb 2, 2018 at 6:26 AM
    #209
    NeonTaco

    NeonTaco ಠ_ಠ

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    That is probably what I will be doing too, I don't find it necessary to route it to the inside of the fuel door, kind of pointless IMO.
     
    dorkknight likes this.
  10. Feb 18, 2018 at 4:47 PM
    #210
    Madjik_Man

    Madjik_Man The Rembrandt of Rattle Can

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    Only advantage I can see is if the gear oil seeped or not.

    Don't know if that's a diagnostic for anything serious wrt pressure in the diff or not.
     
    Area51Runner and NeonTaco like this.
  11. Feb 19, 2018 at 2:53 PM
    #211
    rob1

    rob1 Well-Known Member

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  12. Aug 9, 2019 at 9:22 PM
    #212
    G59

    G59 stock af

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    Dont mean to revive an old thread but has anyone ever actually had a problem with water or debris getting into their diff without this mod?
     
  13. Aug 10, 2019 at 3:05 AM
    #213
    David K

    David K Well-Known Member

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    Differential Breather Mod Light Bar: 4 Cree LED lamps Bilstein 5100s Ride Rite Air Bags
    Nope, 9 years now for mine. You risk water getting in if you don't do this!
     

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