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What is in your Diff

Discussion in '3rd Gen. Tacomas (2016+)' started by thomasburk, May 13, 2022.

  1. May 13, 2022 at 8:38 PM
    #1
    thomasburk

    thomasburk [OP] Well-Known Member

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    1. 2" OME Lift Medium load 2. TRD like wheels 3. 265x70x17" Nitto Grapplers 6/26/2021 4. Custom Sheepskin Leather covered Arm Rest 5. ShearComfort Kryptek Camo Typhon Full set seat covers 6. 4 Amber Front Marker lights 7. LED interior lights 8. Stryker pneumatic hood gas shock openers 9. START-X Remote Starter 10.JBL Club 9632 front door speakers 11. Kenwood KFC-1696PS rear door woofers 12. JBL Club 3412T dash tweeters 13. OME UCA 14. License plate light delete in reverse FBC 15. RCI Engine skid plate 16. Automatic Tailgate Lock 17. RCI Transmission skid, & RCI cat guards 18. A\C drain hose relocate
    I scoured the car parts stores, even walmart looking for Diff oil LT 75W-85 GL-5, and Tcase Oil 75W LF, but I'll be go to hell if it exists! What are you guys using and where did you get it? Look at this pic, 75W-90? I don't think this will work in the Diff--OR will it? (stand by for pics)

    20220512_202136.jpg 20220512_202153.jpg 20220513_213646.jpg 20220513_213636.jpg


    Bonus pic--Saw this 3rd gen on the road today looked rather clean with a nice lift.Screenshot_20220513-174938_Photos.jpg
     
  2. May 13, 2022 at 9:08 PM
    #2
    LiquidArrogance

    LiquidArrogance Well-Known Member

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  3. May 13, 2022 at 9:24 PM
    #3
    Buttskevin21

    Buttskevin21 Well-Known Member

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    Any 75w and heavier will be just fine.
     
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  4. May 13, 2022 at 9:30 PM
    #4
    MARSHBUSTER

    MARSHBUSTER Well-Known Member

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    Amsoil Full Synthetic 75w/90 Severe Gear.
     
    Last edited: May 13, 2022
  5. May 13, 2022 at 9:40 PM
    #5
    saint277

    saint277 Well-Known Member

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    redline offers the 75-85 and the 75w tcase fluid. You can use the 75-90 stuff in the diffs, but the tcase needs the correct fluid.
     
  6. May 13, 2022 at 9:59 PM
    #6
    hx989

    hx989 Superunknown Member

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    Eww that truck looks like shit. Each to their own I guess but I need eye bleach now.

    85w140 Dino oil in the rear diff for me. Toyota specs that watery crap for fuel economy reasons and nothing else
     
  7. May 13, 2022 at 9:59 PM
    #7
    Superdave1.0

    Superdave1.0 Grandma Dave

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    That's debatable. Tons of folks using 75w-90 in T case. Many Toyota dealerships admit they use same fluid for all 3.

    Toyota does specify a different fluid, so i wont say you're wrong.

    Manual Trans for sure requires a GL4 which is not your typical 75w-90 gear oil.
     
    thomasburk [OP] and Pablo8 like this.
  8. May 13, 2022 at 10:04 PM
    #8
    Chuy

    Chuy Well-Known Member

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    75/90 all around. Use synthetic or friction modifiers in rear if you have mechanical limited slip - for 07-09 Sport models, I believe.
     
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  9. May 13, 2022 at 10:44 PM
    #9
    saint277

    saint277 Well-Known Member

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    dealers are not a reliable source for service data, but manuals are.
     
  10. May 13, 2022 at 11:33 PM
    #10
    dr4g1116

    dr4g1116 Well-Known Member

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    Redline 75w85 for the difs, Toyota 75w for the tcase. After changing everything at 30k miles, I've decided everything was in good enough shape to do another 30k and will be doing 60k intervals. Only need 1 can of the tcase stuff. Capacity for the tcase is 1.1L but you can't really drain that last .1L.
    upload_2022-5-14_2-31-39.jpg[​IMG]
     
  11. May 13, 2022 at 11:43 PM
    #11
    79CHKCHK

    79CHKCHK Padawan of Rock Lobster

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    Amsoil from @Pablo8 since 30,000 miles. Been running great, and just did my 40,000 mile maintenance.
     
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  12. May 13, 2022 at 11:50 PM
    #12
    JJ Diablo

    JJ Diablo Well-Known Member

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    Just noticed have several new bottles left from when I did my 2nd gen fluids. It has the ‘contains friction modifiers’ label. Can this still be used on my ‘21 when the time comes? Im not sure how friction modifiers affect things.
     
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  13. May 14, 2022 at 1:26 AM
    #13
    Chuy

    Chuy Well-Known Member

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    @JJ Diablo I’ve read, yes, and that some bottles will state as such. The modifiers help the LSD clutches provide more friction among themselves. They do no harm to an open diff from what I’ve read.
     
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  14. May 14, 2022 at 2:29 AM
    #14
    Jp260z

    Jp260z Active Member

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    Yes, the modifiers are an additive used for the clutches in a mechanical limited slip unit. Totally fine for use in a non limited slip differential.

    The opposite isn't true though. If you have a limited slip diff using additive is a requirement. When I was a teenager I changed the gear oil in my Camaro and didn't use any additive for the limited slip unit. The rear made a hell of a noise any time I turned, very metallic sounding. Turns out the clutches bind with one another without that stuff in there.
     
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  15. May 14, 2022 at 4:59 AM
    #15
    Pablo8

    Pablo8 The Watusi

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    Those places won't carry good specialty lubricants. 75W-90 will work in your diffs. In Tampa? Run 75W-110 in the rear and 75W-90 in the front.

    TC? A 75W-90 will work (18cSt @ 100°C or so), you don't need it. I recommend a good MTF in the 10 cSt range. The Toyota stuff is around 7cSt IIRC.

    Here: https://www.tacomaworld.com/threads/amsoil-products-atf-mtf-gear-oils.639632/

    Truck OK. Too much lift and the tires are useless, wheels worse.
     
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  16. May 14, 2022 at 5:28 AM
    #16
    zoo truck

    zoo truck Well-Known Member

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  17. May 14, 2022 at 5:41 AM
    #17
    wrightme43

    wrightme43 Well-Known Member

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    Mobil 1 75w90 in front and rear diff.
    Motocraft unicorn tears in the manual transmission.
    Transfer case will receive Toyota Transfer case juice at 90,000 miles.

    All other will be replaced with identical fluids as the factory juice was drained at 45,000.

    It seems right to me. I expect any quality fluids will work fine.

    The Transfer case stuff is so specific I expect Toyota has a reason.
     
    thomasburk [OP] likes this.
  18. May 14, 2022 at 5:57 AM
    #18
    shotgunbilly420

    shotgunbilly420 Tacoma enthusiast/ Tune Consultant

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    Honestly I run amsoil front diff, transfer case and rear end. Car care nut on YouTube says it all good
     
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  19. May 14, 2022 at 6:47 AM
    #19
    thomasburk

    thomasburk [OP] Well-Known Member

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    Thanks for the link on TW.

    :rofl:
     
    Last edited: May 14, 2022 at 7:33 AM
  20. May 14, 2022 at 6:54 AM
    #20
    ShimStack

    ShimStack Well-Known Member

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    75W-85 Redline in diffs.
    MT-LV Redline in transfer case.

    I recommend the MT-LV or Toyota LF 75W in the transfer case. Anything from 75W-85 to 85W-140 in the diffs. 75W-85 helps Toyota hit fuel economy standards.
     
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