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rear diff. question

Discussion in '2nd Gen. Tacomas (2005-2015)' started by KTMCRAZY, Oct 31, 2017.

  1. Oct 31, 2017 at 9:52 AM
    #1
    KTMCRAZY

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    KTMCRAZY [OP] Active Member

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    I have a 2009 or 4.0 6mt.
    A friend told me if I had a locking rear diff. I needed to add an additive to the gear oil. Is this correct? I was planning on using Mobil 1.
     
    KTMCRAZY, Oct 31, 2017
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  2. Oct 31, 2017 at 9:56 AM
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    randd

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    randd Well-Known Member

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    Nope, additive is only needed for limited slip diffs. Mobil 1 is fine as is for a locking rear diff. Make sure that you can remove the fill plug before removing the drain plug.
     
    randd, Oct 31, 2017
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    DaveInDenver likes this.
  3. Oct 31, 2017 at 10:00 AM
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    Taco Tacoma

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    Taco Tacoma Well-Known Member

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    Is it a locker that you can unlock and relock? Like and limited slip? If so I would run a higher end oil, but I’m not an expert
     
    Taco Tacoma, Oct 31, 2017
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  4. Oct 31, 2017 at 10:02 AM
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    KTMCRAZY

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    KTMCRAZY [OP] Active Member

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    It's a stock TRD off road.
     
    KTMCRAZY, Oct 31, 2017
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  5. Oct 31, 2017 at 10:03 AM
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    Taco Tacoma

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    Taco Tacoma Well-Known Member

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    I would just use the Toyota oil just to be safe
     
    Taco Tacoma, Oct 31, 2017
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  6. Oct 31, 2017 at 10:10 AM
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    Stewbuff

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    Stewbuff Well-Known Member

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    Stewbuff, Oct 31, 2017
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  7. Oct 31, 2017 at 10:15 AM
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    Extra Hard Taco

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    Extra Hard Taco Survivor of the winter of misery and death.

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    Extra Hard Taco, Oct 31, 2017
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  8. Oct 31, 2017 at 10:16 AM
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    eccracer104

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    eccracer104 O.G. Member

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    No additive needed for the TRD Off Road models with a locker. TRD Sport models with a stock Limited Slip Differential (LSD) do require an LSD additive.
     
    eccracer104, Oct 31, 2017
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  9. Oct 31, 2017 at 10:18 AM
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    stickyTaco

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    stickyTaco Fuck Cancer

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    As stated, the additive is for a mechanical limited slip, not locking differential or the electronic LSD that are on the later 2nd gen TRD Sport. M1 is fine, just make sure you use the correct weight.
     
    stickyTaco, Oct 31, 2017
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  10. Oct 31, 2017 at 10:40 AM
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    Drtnap19

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    Drtnap19 Well-Known Member

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    Help me out....
    I'm 61 and easily confused. LOL. I have an '11 Sport 4.0 DC 4x4. What do I have and do I need LSD additive..and where can I find LSD additive?
     
    Drtnap19, Oct 31, 2017
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  11. Oct 31, 2017 at 10:42 AM
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    eon_blue

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    eon_blue Most Improved Member

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    No you don't need any additive. Just regular gear oil, synthetic if you want to get fancy. Only the 05-07 Sports had a true mechanical LSD differential....08+ uses a braking system that mimics it.
     
    eon_blue, Oct 31, 2017
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  12. Oct 31, 2017 at 10:44 AM
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    Drtnap19

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    Drtnap19 Well-Known Member

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    Thanks
     
    Drtnap19, Oct 31, 2017
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  13. Oct 31, 2017 at 10:44 AM
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    36tacundra

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    36tacundra Well-Known Member

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    DSCN7106.jpg Most Toyotas that require LSD oil will have a white sticker on the rear end by the fill spout. If you have a E-locker you do not need LSD oil.
     
    36tacundra, Oct 31, 2017
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  14. Oct 31, 2017 at 10:44 AM
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    eccracer104

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    eccracer104 O.G. Member

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    eccracer104, Oct 31, 2017
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    eon_blue likes this.

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.67
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