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Gear Oil

Discussion in '2nd Gen. Tacomas (2005-2015)' started by maunal4life, May 17, 2019.

  1. May 17, 2019 at 7:10 PM
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    maunal4life

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    maunal4life [OP] New Member

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    So I'm wanting to change the gear oil on the front diff, rear end, and transmission (5 speed 4x4)
    How much gear oil I will need for all three, and do you have to run different weight gear oil in them?
    Truck is an 06 single cab 4x4 manual.

    Thanks.
     
    maunal4life, May 17, 2019
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  2. May 17, 2019 at 7:23 PM
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    Biscuits

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    Biscuits Thorny Crown of Entropy

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    Biscuits, May 17, 2019
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  3. May 17, 2019 at 7:31 PM
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    JeffreyB

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    JeffreyB Well-Known Member

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    I seem to remember the transmission needing GL-4 where GL-5 is fine in diffs. Gonna go grab my manual to double check that.

    Edit: Just confirmed in my manual GL-4 in the trans, GL-5 in the Diffs. Hit the transfer case while you are at it. 75-90 on all 3. The manual actually calls for 75-85 in the diffs but that is a bunch of horse shit to get you to buy the Toyota fluid.
     
    Last edited: May 17, 2019
    JeffreyB, May 17, 2019
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  4. May 17, 2019 at 7:35 PM
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    Clearwater Bill

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    Clearwater Bill Never answer an anonymous letter

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    Clearwater Bill, May 17, 2019
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  5. May 17, 2019 at 7:35 PM
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    KaPantsKey

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    KaPantsKey Well-Known Member

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    I assume you mean the transfer case when you say transmission? If that is correct, I purchase 6 quarts to do all 3 (front diff, transfer case, and rear diff). I use Mobil1
    $28 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75W-90, but that is up to you. Do make sure your rear diff requires LSD additive, or not. I can't remember if the 2006's need them.
     
    KaPantsKey, May 17, 2019
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  6. May 17, 2019 at 7:48 PM
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    Biscuits

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    Biscuits Thorny Crown of Entropy

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    That is what I assumed.
     
    Biscuits, May 17, 2019
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  7. May 17, 2019 at 8:17 PM
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    Dalegribble02

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    Dalegribble02 Well-Known Member

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    I use 75 90 in my rear diff front diff and transfer case.
     
    Dalegribble02, May 17, 2019
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  8. May 17, 2019 at 8:34 PM
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    maunal4life

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    maunal4life [OP] New Member

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    It's a manual transmission so I'm trying to figure what gear oil to put in it. I've got the
    $28 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75W-90 for the diffs and transfer case.
     
    maunal4life, May 17, 2019
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  9. May 17, 2019 at 8:35 PM
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    Biscuits

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    Biscuits, May 17, 2019
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  10. May 17, 2019 at 9:51 PM
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    b_r_o

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    We've got a barrel of 80w-90 in the shop and i just use that cause its free
     
    b_r_o, May 17, 2019
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  11. May 28, 2019 at 11:52 AM
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    Norton

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    Norton Senior Member

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    75W-90 is suitable for the transmission, transfer case, front diff, and rear diff.

    FWIW, I've had good results with Amsoil Severe Gear 75W-90 in all of the above for years in my previous 1st Gen and my current 2nd Gen.
     
    Norton, May 28, 2019
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Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$27.88
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