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3rd Gen Differential and Manual Transmission (6MT) Fluid Change

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Omar RVA, Mar 19, 2017.

  1. Jul 6, 2019 at 7:05 AM
    #381
    SandyTaco4x4

    SandyTaco4x4 Well-Known Member

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    Did my differentials and transfer case yesterday for the first time with the help of this thread and others. My magnetics and fluid actually weren't too bad for the 30K I have on mine.
    20190705_170218.jpg 20190705_174350.jpg

    I used this pump and it worked well. About 100 pumps per bottle though. From autozone-
    https://m.autozone.com/test-scan-an...d-pump/performance-tool-fluid-pump/332794_0_0

    I also used this oil for all three, -
    Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 12) https://www.amazon.com/dp/B009IE2O30/ref=cm_sw_r_cp_apa_i_iOkiDbABVQ0MP

    I also found this from a tacomaholics youtube video on the subject, ordered it and will install it with next change- https://trailtoys.net/products/magnetic-drain-plug

    All my fill and drain plugs came off relatively easily. Didn't need PB blaster or anything even after 30K and for the first time!
     
    JDSmith likes this.
  2. Jul 6, 2019 at 8:19 AM
    #382
    TheSt|G

    TheSt|G Well-Known Member

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    This is why you do 1,000 mile break in fluid changes.
     
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  3. Jul 6, 2019 at 8:45 AM
    #383
    splitbolt

    splitbolt Voodoo Witch Doctor

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    Why 75W-90 for the transfer case?
     
    TeecoTaco likes this.
  4. Jul 6, 2019 at 9:37 AM
    #384
    SandyTaco4x4

    SandyTaco4x4 Well-Known Member

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  5. Jul 6, 2019 at 10:54 AM
    #385
    Paul631

    Paul631 Well-Known Member

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  6. Jul 6, 2019 at 11:01 AM
    #386
    SandyTaco4x4

    SandyTaco4x4 Well-Known Member

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    Didn't realize they changed transfer cases figured it was the same as the 2nd gens with the same fill and drain plugs and the same torque specs etc. Saw videos and posts of people using that fluid for all three or if it was a different fluid they were still using the same fluid for the diffs and transfer case so thats what I did. I could always swap it with something tho its only a quart in there and I'm planning on adding that magnetic drain plug sometime.
     
  7. Jul 6, 2019 at 11:05 AM
    #387
    TeecoTaco

    TeecoTaco Liberty Biberty

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    Modified the level of gas in the tank
    Only a qrt, but that qrt is about 4x as much as qrt of diff gear oil
     
  8. Jul 6, 2019 at 11:07 AM
    #388
    SandyTaco4x4

    SandyTaco4x4 Well-Known Member

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    Is it worth it or necessary ?:oops:
     
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  9. Jul 6, 2019 at 11:08 AM
    #389
    splitbolt

    splitbolt Voodoo Witch Doctor

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    Dealers will even use 75W90...
    I don't know if it's a matter of ignorance, convenience or economics.
    Choose whatever you like; you just can't claim ignorance as to why 75W90 is in your transfer case.:thumbsup:
     
  10. Jul 6, 2019 at 11:13 AM
    #390
    TeecoTaco

    TeecoTaco Liberty Biberty

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    Modified the level of gas in the tank
    Worth it for me...OEM spec
    DSC_0853.jpg
     
    shakerhood likes this.
  11. Jul 6, 2019 at 11:13 AM
    #391
    splitbolt

    splitbolt Voodoo Witch Doctor

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    FWIW, I asked a CLS(Certified Lubrication Specialist by STLE) about cross compatibility of the LF fluid. He could not recommend a suitable substitute.
     
  12. Jul 6, 2019 at 11:17 AM
    #392
    TeecoTaco

    TeecoTaco Liberty Biberty

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    Modified the level of gas in the tank
    shakerhood and splitbolt[QUOTED] like this.
  13. Jul 6, 2019 at 11:41 AM
    #393
    SandyTaco4x4

    SandyTaco4x4 Well-Known Member

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    Right when i thought for once a project on the truck went smoothly y'all come in and ruin my day
     
  14. Jul 6, 2019 at 11:43 AM
    #394
    splitbolt

    splitbolt Voodoo Witch Doctor

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    :sorry:
     
  15. Jul 6, 2019 at 3:07 PM
    #395
    SandyTaco4x4

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    TeecoTaco likes this.
  16. Jul 6, 2019 at 3:17 PM
    #396
    TeecoTaco

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    Modified the level of gas in the tank
    No idea bro...I'm a computer geek, not a mechanic or oil scientist. This is why I go by oem spec.

    Sorry, didn't mean to bung you up.
     
  17. Jul 6, 2019 at 3:18 PM
    #397
    SandyTaco4x4

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    Haha no biggie I'm just learning. This was my first time changing diff/transfer case oil so trying to learn.
     
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  18. Jul 6, 2019 at 3:21 PM
    #398
    TeecoTaco

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    Modified the level of gas in the tank
    Someone will chime in...the OP would have a much better take on that question.

    You might get lucky here tho, this forum usually has no opinion regarding oil...perhaps someone will get chatty :thumbsup:
     
    SandyTaco4x4[QUOTED] likes this.
  19. Jul 6, 2019 at 3:24 PM
    #399
    Norilsk

    Norilsk Well-Known Member

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    I thought everyone knew... /s


    I got the LF fluid from toyota to avoid it.
    I doubt there is significant difference in oil viscosity, you should be good until next service.
     
  20. Jul 6, 2019 at 3:28 PM
    #400
    splitbolt

    splitbolt Voodoo Witch Doctor

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    There have been a few members who have done it, who reported no ill effects...yet.
    Then again, I wouldn't expect anyone who willfully ignores the spec, to come on here and warn others if/when their's goes tits up.
    My two main concerns would be, (1) GL-5 gear oil and yellow metal compatibility and (2) pumpability through the transfer case pump.
     

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