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Rear Diff fluid

Discussion in '2nd Gen. Tacomas (2005-2015)' started by TacoBob2008, Feb 8, 2017.

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  1. Feb 11, 2017 at 3:53 PM
    #21
    j.claw

    #21
    j.claw Active Member

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    Thank you, very helpful.

    Would running Royal Purple synthetic 75W-90 be detrimental? Just need to change it more frequently because of the friction modifiers?
     
    j.claw, Feb 11, 2017
    #21
    NAAC3TACO[QUOTED] likes this.
  2. Feb 11, 2017 at 7:15 PM
    #22
    NAAC3TACO

    #22
    NAAC3TACO Middle aged member

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    75W90 synthetic is perfect, but I would check with Royal Purple to see if the friction modifiers decrease the change intervals on their gear oil. I have no idea.
     
    NAAC3TACO, Feb 11, 2017
    #22
    j.claw[QUOTED] likes this.
  3. Jun 11, 2019 at 12:10 PM
    #23
    Kyle2007

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    Kyle2007 Active Member

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    Insert sad face
    Side note - motor master is a shell oil so it's actually pretty good
     
    Kyle2007, Jun 11, 2019
    #23
  4. Jun 12, 2019 at 8:32 AM
    #24
    Dgoode9

    #24
    Dgoode9 Well-Known Member

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    You don’t need the LSD additive if it’s a 2009+ TRD sport, correct?
     
    Dgoode9, Jun 12, 2019
    #24
  5. Jun 12, 2019 at 4:27 PM
    #25
    NAAC3TACO

    #25
    NAAC3TACO Middle aged member

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    Correct. 2005-2008 TRD Sport only.
     
    NAAC3TACO, Jun 12, 2019
    #25
    Marc70 likes this.
  6. Jul 31, 2019 at 5:33 AM
    #26
    buckmaster243

    #26
    buckmaster243 I don’t know what to do with my hands

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    Bringing back a old thread instead of starting a new one. I've got a 2013 Tacoma and was looking at changing the diff fluids. I have the auto lsd button on my dash, but with my understanding this just uses the abs system to apply brakes to the tire that is spinning (could be wrong). Do I need a lsd additive or is regular 80-90w good? It's a DCLB Sr5.
     
    buckmaster243, Jul 31, 2019
    #26
    NAAC3TACO likes this.
  7. Jul 31, 2019 at 5:00 PM
    #27
    NAAC3TACO

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    NAAC3TACO Middle aged member

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    You do not need LSD additive.
     
    NAAC3TACO, Jul 31, 2019
    #27
    buckmaster243[QUOTED] likes this.
  8. Jul 31, 2019 at 5:01 PM
    #28
    T Fades

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    T Fades Well-Known Member

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    Satoshi, debadged, rear view mirror bracket, tail gate hose clamps, trimmed mud flaps.
    75x90 is just fine as long as you don’t haul/tow the max weight on a daily basis
     
    T Fades, Jul 31, 2019
    #28
  9. Jul 31, 2019 at 5:02 PM
    #29
    T Fades

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    T Fades Well-Known Member

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    No additive needed
     
    T Fades, Jul 31, 2019
    #29
  10. Aug 3, 2019 at 8:43 AM
    #30
    asuchemist

    #30
    asuchemist My Hamstrings Hurt!

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    NONE
    Have a 2011. Dealer did add LSD Additive @30K. Have no issues with differential.

    When I did it myself I used Valvoline™ High Performance 80W-90 Gear Oil and LSD additive Toyota shop was using. I am probably wasting $6 on the LSD additive.
     
    asuchemist, Aug 3, 2019
    #30
  11. Aug 3, 2019 at 9:52 AM
    #31
    NAAC3TACO

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    NAAC3TACO Middle aged member

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    It won't hurt anything, but it is unnecessary.
     
    NAAC3TACO, Aug 3, 2019
    #31
  12. Aug 16, 2019 at 4:17 PM
    #32
    LukeDF55

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    LukeDF55 Member

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    Hey guys, I have a 2013 TRD Sport 4x4 4.0 ltr, and about to change out my rear diff fluid, as my trucks at about 63,000 km (BC Canada here) but checked my fluid at the fill hole, and some dribbled out nice and clear. I’ve had the truck 4 years, never changed it, and I’m the 2nd owner. Haul firewood in a trailer during the fall/winter/spring which is about 2-3k pounds I’m guesstimating. What do you think, leave it some time longer or change to a thicker fluid as I do haul some weight seasonally?

    Bought some Valvoline 75w-140 full synth with LS, cause I wasn’t sure what I had, then found out here on TW that the ‘09+ TRD Sports don’t need the additive. Thinking of returning it and getting Lucas 75w90 full synthetic or the 85w-140 like ECGS recommends, but then I only have a stock factory diff. In a bit if a quandary here...I like to baby my truck inside and out.

    Open for suggestions, thanks guys!

    Luke

    8DBD6563-16FC-4224-A5F1-BF1EDDE44406.jpg
     

    Attached Files:

    LukeDF55, Aug 16, 2019
    #32
  13. Aug 16, 2019 at 4:29 PM
    #33
    Mossyjaws

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    Mossyjaws Well-Known Member

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    Just changed mine a couple of weeks ago at about 41k. Fluid looked great and I tow occasionally, 4500lbs half a dozen times a year and a utility trailer roughly 20 times a year. Realize people are going to bash me but in hindsight I would not have changed it until 75-100k. Bought enough
    $30 75w 90 Synthetic Gear Lube - 1 Quart (Pack of 2)
    75w 90 to do the transfer case and front differential. Think I am going to go ahead and do the front but not the transfer. Then will do all three again at 100k. Sometimes I think folks get a little carried away with the maintenance on these trucks.
     
    Mossyjaws, Aug 16, 2019
    #33
  14. Aug 16, 2019 at 7:35 PM
    #34
    LukeDF55

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    LukeDF55 Member

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    Good point. Dealership said transfer case isn’t due till 120k. Maybe they got a point, at least for us light duty users.
     
    LukeDF55, Aug 16, 2019
    #34
  15. Aug 16, 2019 at 8:16 PM
    #35
    Notoneiota

    #35
    Notoneiota Claud Bawls molested my cat.

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    I changed my diffs and transfer case fluids at 60 and 120k with STP 75-90 from Auto Zone and both times it all looked good as new. Was probably unnecessary but it makes me feel better. I tow boats and my motorcycle on a trailer now and again and nothing was worn or out of the ordinary. And the STP gear oil is $6/quart so $36 ain't so bad for peace of mind.
     
    Notoneiota, Aug 16, 2019
    #35
  16. Aug 16, 2019 at 8:23 PM
    #36
    Mully

    #36
    Mully Well-Known Member

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    Lifted, Kings, Locked, 295s and more.
    What are you running if you have an ARB air locker?
     
    Mully, Aug 16, 2019
    #36
  17. Aug 16, 2019 at 9:29 PM
    #37
    b_r_o

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    b_r_o Beef jerky time

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    Looks like they recommend anything from 90w all the way up to 140 depending on temp and load
    Screenshot_20190816-212457_Hancom Office Editor.jpg
     
    b_r_o, Aug 16, 2019
    #37
    Mully[QUOTED] likes this.
  18. Aug 16, 2019 at 9:40 PM
    #38
    MtnFisher

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    MtnFisher Well-Known Member

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    MtnFisher, Aug 16, 2019
    #38
  19. Aug 17, 2019 at 4:08 AM
    #39
    Marc70

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    Marc70 Well-Known Member

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    Check your differential vent while you're at it. I was leaking at the pinion seal a bit, but then towed 3,000lbs trailer up some wicked hills.
    Anyways, when I checked my fluid level after the trip, I was down more than a litre. My vent plug was plugged, and no doubt contributed to a blown seal.
     
    Marc70, Aug 17, 2019
    #39
  20. Aug 17, 2019 at 8:43 AM
    #40
    MtnFisher

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    MtnFisher Well-Known Member

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    Better yet, relocate and replace the rear differential factory one way vent:

    https://www.tacomaworld.com/threads/rear-diff-vent-behind-the-tail-light-mod.286097/

    Numerous websites and youtube videos on how and why to do this mod.

    I used Gates 1/4" fuel hose on mine, worked out great.
     
    Last edited: Aug 17, 2019
    MtnFisher, Aug 17, 2019
    #40
    Marc70[QUOTED] and REDdawn6 like this.
Page 2 of 3

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.13
Motive Products 1735 Power Fill Pro Fluid Transfer Pump 1 GAL Tank with Schraeder Valve, Ball Valve Shutoff, and Hose, 4 Quart Capacity
$89.99
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