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What rear differential oil to use?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by ta2010, Oct 27, 2017.

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  1. Nov 30, 2017 at 9:55 AM
    #41
    inesshell

    #41
    inesshell blah blah blah

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    thats funny because my truck was purchased new from broadway :anonymous:
     
    inesshell, Nov 30, 2017
    #41
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  2. Nov 30, 2017 at 10:28 AM
    #42
    stevotivo12

    #42
    stevotivo12 Well-Known Member

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    Running 80w140 synthetic here and have noticed better bump absorption/axle ability to soak bumps without slowing down over 75w90. Seems the thicker weight helps keep the gears smooth over bumps and gives them a little extra momentum. Have not noticed any decreases in MPGs now after a few fillups
     
    stevotivo12, Nov 30, 2017
    #42
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  3. May 17, 2020 at 3:23 PM
    #43
    dborrer

    #43
    dborrer Well-Known Member

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    I just became a Dino Lucas 85W140 Gear Oil user.... Thanks again TW !!
     
    dborrer, May 17, 2020
    #43
  4. May 17, 2020 at 10:52 PM
    #44
    jrowe4321

    #44
    jrowe4321 Well-Known Member

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    Changing the rear diff is probably one of the easiest maintenances to do, but i'd stick with synthetic.
     
    jrowe4321, May 17, 2020
    #44
  5. May 17, 2020 at 11:20 PM
    #45
    nudavinci64

    #45
    nudavinci64 Robert @ Holy Horsepower

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    Boosted Money Pit....
    I have been sticking with Lucas 85w140 after doing an ECGS gear swap. Transfer case has Amsoil in it but may switch to some Toyota Transfer 75W as its supposed to have specific formula no on else has, supposedly Toyota won't release it.
    https://www.sparksparts.com/oem-par...GCJz2nad3a-iWWOIn6PxyzT8TJsk2T2RoCtUQQAvD_BwE
     
    nudavinci64, May 17, 2020
    #45
  6. May 18, 2020 at 4:50 AM
    #46
    dborrer

    #46
    dborrer Well-Known Member

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    I am tearing into mine (front diff) this weekend and just ordered the Lucas oil.... how hard was it to get the speciality tool into the case to remove the needle bearing? (i've watched all the vids)
     
    dborrer, May 18, 2020
    #46
  7. May 18, 2020 at 10:31 AM
    #47
    nudavinci64

    #47
    nudavinci64 Robert @ Holy Horsepower

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    Boosted Money Pit....
    Honestly no idea. When I swapped diff's they had it already installed. There are a ton of threads on the topic though.
     
    nudavinci64, May 18, 2020
    #47
  8. May 18, 2020 at 3:00 PM
    #48
    dborrer

    #48
    dborrer Well-Known Member

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    Roger that... i've been reading all of them...

    and just for fun... GO Broncos!
     
    dborrer, May 18, 2020
    #48
    nudavinci64[QUOTED] likes this.
  9. May 18, 2020 at 5:15 PM
    #49
    nudavinci64

    #49
    nudavinci64 Robert @ Holy Horsepower

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    Boosted Money Pit....
    Touche!
     
    nudavinci64, May 18, 2020
    #49
    dborrer[QUOTED] likes this.
  10. May 18, 2020 at 5:34 PM
    #50
    ABNFDC

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    ABNFDC Well-Known Member

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    It doesn't look hard. I used a Blind Hole Puller that AutoZone used to have in its loan a tool program. It worked well, but the ECGS tool is likely a bit easier.

    I used Amsoil 75W-110 on both diffs and the T-Case about 50K ago because I got a good deal on it. I'll probably do similiar next time.
     
    ABNFDC, May 18, 2020
    #50
    dborrer[QUOTED] likes this.
  11. Oct 20, 2022 at 12:28 PM
    #51
    crackils

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    crackils Sith Lord Jar Jar

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    crackils, Oct 20, 2022
    #51
  12. Oct 20, 2022 at 1:15 PM
    #52
    NAAC3TACO

    #52
    NAAC3TACO Middle aged member

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    NAAC3TACO, Oct 20, 2022
    #52
    crackils[QUOTED] and TnShooter like this.
  13. Oct 20, 2022 at 2:32 PM
    #53
    TnShooter

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    TnShooter, Oct 20, 2022
    #53
    NAAC3TACO and crackils[QUOTED] like this.
  14. Oct 20, 2022 at 3:10 PM
    #54
    crackils

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    crackils Sith Lord Jar Jar

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    Thanks!! I appreciate both the replies!!

     
    crackils, Oct 20, 2022
    #54
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  15. Oct 21, 2022 at 4:06 PM
    #55
    dborrer

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    dborrer Well-Known Member

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    dborrer, Oct 21, 2022
    #55
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  16. Oct 21, 2022 at 4:28 PM
    #56
    TnShooter

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    OP if you (re)read post #35 and choose to use the heavier oil.
    Be warned that using it in the front differential can result oil leaking from the breather.
    Also take not to keep an eye on the differential breather on the rear axle.
    It can/will get stuck with age and cause axle seals to leak.
    Some guys (even Toyota techs) don’t recommend using the heavier oil.

    I personal chose to use the heavier oil in my front diff.
    I did experience leaks, and for that reason I do not recommend others use it in their stock gear set/differentials.

    I am not arguing the fact one oil is better than another.
    I giving my opinion backed with some fact.

    I asked about the issue using the heavier fluid here.
    Because it had been known to cause the front diff breather to leak.
    https://www.tacomaworld.com/threads...as-your-diff-breather-started-leaking.719245/

    I chose take a chance and use the heavier oil.
    The chance didn’t work out, it leaked.
    https://www.tacomaworld.com/threads/front-diff-leaking-gear-oil-from-the-breather.744067/
    upload_2022-10-21_19-28-18.jpg
     
    TnShooter, Oct 21, 2022
    #56
  17. Oct 21, 2022 at 8:38 PM
    #57
    crackils

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    crackils Sith Lord Jar Jar

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    Thanks!!
     
    crackils, Oct 21, 2022
    #57
    dborrer[QUOTED] likes this.
Page 3 of 3

Products Discussed in

Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2)
$29.67
Valvoline High Performance SAE 75W-90 Gear Oil 1 QT
$16.32
Red Line 50104, 75W85 GL-5, Full Synthetic Gear Oil - 1 Quart
$23.53
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