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Which fluid goes in the transfer case

Discussion in '1st Gen. Tacomas (1995-2004)' started by Jermzfree, Apr 22, 2018.

  1. Apr 22, 2018 at 3:48 PM
    #1
    Jermzfree

    Jermzfree [OP] Active Member

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    I have a 97 2.7 liter. I have been reading gear oil should not be used for the manual transmission. Instead GL4 transmission fluid is better for the syncros. For what its worth my truck has 240k on the transmission, and has gotten gear oil its entire life. But for good measure I switched to GL4. Is GL4 also recommended in the transfer case as well? or is gear oil the way to go?
     
  2. Apr 22, 2018 at 3:54 PM
    #2
    BartMaster1234

    BartMaster1234 American Auto Horns

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    Tyler
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    Flux Capacitor
    I used gear oil for my transfer case.
     
    Jermzfree [OP] likes this.
  3. Apr 23, 2018 at 4:13 PM
    #3
    Jermzfree

    Jermzfree [OP] Active Member

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    Anyone else?
     
  4. Apr 23, 2018 at 7:57 PM
    #4
    Kiloyard

    Kiloyard Road Warrior

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    Phoenix, AZ
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    Toytec Boss/Eibach Coils & Deaver J59's
    75W90 Mobile 1 gear oil for the T-case. I took this forum's advice and used Redline MT90 for the transmission and it shifts smoother now than it ever has. I was considering getting a new transmission before I stumbled onto this forum.
     
    Jermzfree [OP] likes this.
  5. Apr 23, 2018 at 8:02 PM
    #5
    BartMaster1234

    BartMaster1234 American Auto Horns

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  6. Apr 24, 2018 at 6:30 PM
    #6
    Jermzfree

    Jermzfree [OP] Active Member

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    Yes the GL4 is working a lot better. Its shifting a lot smoother. What was your transmission doing before you switched?
     
  7. Apr 24, 2018 at 6:32 PM
    #7
    Jermzfree

    Jermzfree [OP] Active Member

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    Ok I think that is a good consensus. Thanks for replies.:cheers:
     
  8. Apr 24, 2018 at 7:44 PM
    #8
    Kiloyard

    Kiloyard Road Warrior

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    Shifting slowly, hesitating to get into gear, refusing to go into gear at times. I went with MT90 and after that I put in a short-throw shift lever from Marlin Crawler. Lots of people on this forum settle for a new seat and bushing and get excellent results. Now that the new parts have broken in those problems are a thing of the past.
     
    JPinFL likes this.
  9. Apr 24, 2018 at 7:52 PM
    #9
    TRVLR500

    TRVLR500 Well-Known Member

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    I've got Amsoil in everything. 75-110 in the front and rear diffs. GL4 in the tranny and I actually forgot what I have in the transfer case. Probably 75-90 gear oil. Whatever it is, it's what weight and type the factory recommends.
     
  10. Apr 25, 2018 at 8:01 AM
    #10
    tan4x4

    tan4x4 Well-Known Member

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    Bilsteins, OME 881's, 3-leaf AAL, Detroit TruTrac, Tundra brake swap, Michelin LTX AT2, Tranny skidplate, TC skidplate, CBI rear bumper, TG sliders, UltraGauge, PowerTank, Reverse Camera
    I use what the owners manual calls for : 75w90 GL5
    Toyota engineers know best :D
     
    WizardsAndBooze likes this.

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