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Differential fluid changes

Discussion in '3rd Gen. Tacomas (2016+)' started by jardoo, Feb 13, 2019.

  1. Feb 13, 2019 at 4:46 PM
    #1
    jardoo

    jardoo [OP] Well-Known Member

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    Ok, this is a really stupid question but I have to ask it because I don't know dick.

    I'm trying to change my front and rear differential fluids. Do I change the front, rear, and t case fluids? Or do I change the front and rear differential fluids?

    Basically, is the front differential the same as the transfer case? I change 2 or 3 things?

    Thank you
     
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  2. Feb 13, 2019 at 4:55 PM
    #2
    Lt. Dangle

    Lt. Dangle RIP @stun gun 2016-2020

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    I think the manual says to do all at 30k miles. No they are not the same thing.

    Front and rear diff use same fluid. Transfer case is different.
     
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  3. Feb 13, 2019 at 4:57 PM
    #3
    Vbpiper

    Vbpiper Well-Known Member

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    Last edited: Feb 13, 2019
  4. Feb 13, 2019 at 5:30 PM
    #4
    jardoo

    jardoo [OP] Well-Known Member

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    Can I use valvoline 80-90 in all 3 and be done?

    Thanks.
     
  5. Feb 13, 2019 at 5:33 PM
    #5
    Vbpiper

    Vbpiper Well-Known Member

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    I would not use it in the transfer case. It may not be compatible with some of the metals, but there is some debate about that. As far as I know, only 1 or 2 non-OEM fluids claim to meet the Toyota spec for the transfer case, but I do not recall the brands at the moment.
     
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  6. Feb 13, 2019 at 5:38 PM
    #6
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

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    Its a good plan to use the viscosity and GL rating for each of the 3 units that the manual calls for.
     
  7. Feb 13, 2019 at 5:40 PM
    #7
    Grossomotto

    Grossomotto Complete 3rd Member

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  8. Feb 13, 2019 at 6:41 PM
    #8
    Garyji

    Garyji Well-Known Member

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    If, you "don't know Dick", why are you fucking with it??

    G.
     
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  9. Feb 13, 2019 at 6:44 PM
    #9
    computeruser6

    computeruser6 Nuclear Janitor

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    It kind of depends on your usage. I swap out the rear axle gear oil more often and usually use 85W-140 unless I'm going somewhere cold. I use a lighter oil in the front and transfer case.
     
  10. Feb 13, 2019 at 6:50 PM
    #10
    JoeCOVA

    JoeCOVA IG @MightyJoeFlannel

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    I wouldn’t bother with it. Especially if you don’t know any better.

    Toyota doesn’t even have a basic recommendation for changing it. The manual says every 30k under special operating conditions. Most traditional diff oils were changed every 100k or so.

    Maybe leave it and do it at 30k or 60k
     
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  11. Feb 13, 2019 at 7:11 PM
    #11
    max_o

    max_o Well-Known Member

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    Def take a looksie at the DIY, it explains everything quite well, including what fluids to use, torque specs, etc.
     
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  12. Feb 13, 2019 at 7:42 PM
    #12
    Lt. Dangle

    Lt. Dangle RIP @stun gun 2016-2020

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    Gotta learn somehow. I actually enjoy doing it, maybe OP will discover a new hobby.
     
  13. Feb 13, 2019 at 7:59 PM
    #13
    specter208

    specter208 Well-Known Member

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  14. Feb 13, 2019 at 8:01 PM
    #14
    Stocklocker

    Stocklocker Well-Known Member

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    Couldn’t agree more. The world needs more wrenchin’ and less whinin’
     
  15. Feb 13, 2019 at 8:10 PM
    #15
    Dacon

    Dacon 2017 Tacoma TRD PRO Quikrete

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    If you never done it, STOP and ask for "hands on" help. See if you find another tacoMANIAC in your area to show you how and learn by seeing and doing.
    Anyhow, if you decide to venture in this action, have the right tools and sockets (since the fill and drain plugs are thin, I made a socket for this purpose) and FIRST open the FILL plug. Have seen situations where the drain plug was opened, fluid drained but the fill plug was stuck...now you are SOL without a differential.
     
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  16. Feb 13, 2019 at 8:19 PM
    #16
    wood714

    wood714 Got any Quaaludes?

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    Learn a new hobby on a old beater, not a newer ish truck.

    Remember the dude that wanted to check his rear brakes, and decided to press the brake peddle to see if his emergency brake was working...with the brake drum off?


    [​IMG]
     
  17. Feb 13, 2019 at 8:19 PM
    #17
    dweg77

    dweg77 Active Member

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    OP, you can easily do this yourself... it’s very basic. Just get the tools, the gaskets, and I recommend the OEM oil for the diffs... it’s on Amazon.
     
  18. Feb 13, 2019 at 8:22 PM
    #18
    Lt. Dangle

    Lt. Dangle RIP @stun gun 2016-2020

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    Maybe the Taco is his beater truck... And no offense, but in my neck of the woods working on an old beater means working on rust and F that.
    You are right though, shit can go really wrong, but this isn't hard to figure out. If he found TW, he can find youtube and helpful links.
     
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  19. Feb 13, 2019 at 8:22 PM
    #19
    Stocklocker

    Stocklocker Well-Known Member

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    FFS......it’s like changing diff oil is akin to effin brain surgery.......all hope is lost.....time for that asteroid.

    OP.....even as a total newb, you will be more careful and do a better job of changing your own diff and transfer case oil than the dude down at the dealer who’s just thinking about his lunch, or that spliff he’s got for the end of shift.
     
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  20. Feb 13, 2019 at 8:25 PM
    #20
    la0d0g

    la0d0g Its 4 o’clock somewhere

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    Who waits until the end of the shift? :notsure:
     
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