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Gear Oil + LSD additive

Discussion in '2nd Gen. Tacomas (2005-2015)' started by j1999t, Dec 11, 2009.

  1. Dec 11, 2009 at 4:05 PM
    #1
    j1999t

    j1999t [OP] Well-Known Member

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    Justin
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    im getting my gear oil in my rear diff changed tomorrow and i know i need 80W-90, but what brand is best? and what about LSD additive (my truck has LSD rear end)

    thanks
     
  2. Dec 11, 2009 at 4:08 PM
    #2
    BakoTruck

    BakoTruck Well-Known Member

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    Read this thread, and it will give some good suggestions. I think a lot of those guys with LSD's are running dyno oil with the LSD additive.

    EDIT: I'm not sure what brand most of them are suggesting but any name brand dyno oil should be good, but read the thread and it will have some suggestions.

    http://www.tacomaworld.com/forum/technical-chat/24545-changing-differential-fluid-step-step-how.html
     
  3. Dec 11, 2009 at 4:12 PM
    #3
    Asgard

    Asgard Well-Known Member

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    As long as it's the correct grade (80W-90) the brand shouldn't matter. As for as the LSD additive, I went with Lubegard :

    http://www.youtube.com/watch?v=WBo4Jqm4j2o
     
  4. Dec 11, 2009 at 5:40 PM
    #4
    WATacoRider

    WATacoRider Well-Known Member

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    I currently have Valvoline 80w-90 + Motorcraft LSD additive in my truck. Works fine.

    Before, I had 75w-90 and NAPA LSD additive. I was getting the groans in the morning.

    My local dealership sells Kendall 80w-90 LSD Gear Oil. Only $4.99 per qt.
     
  5. Dec 12, 2009 at 6:16 AM
    #5
    Janster

    Janster Old & Forgetful

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    I've used Amsoil Severe Gear oil in our corvette LSD rear. Works great.
    It already has the additive in it.

    Just double check it's the proper specs for tacomas. I'll probably use that in mine when its time to change - assuming it meets recommendations (I haven't looked myself).
     
  6. Dec 26, 2010 at 3:06 PM
    #6
    WV_Tacoma

    WV_Tacoma Well-Known Member

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    Not enough
    I have a 2005 prerunner v6, 4.0 auto trans, basic truck, no trd or anything like that, no possi rear end..........

    I do not have the rear lsd sticker....the manual doesn't say use lsd. only 90 sae.......

    I tow 5,ooo # travel trailer in and out hills and 1k miles trips...

    1. I can not find 9o sae only. I found 80/90 sae...it has lsd in the bottle

    2. should I upgrade for towing?

    4. I think I would like syn fluid..?
     
  7. Dec 26, 2010 at 8:06 PM
    #7
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    If you towing go with some good synthetic. Like Mobil Delvac 75w-90. Make sure you have good amount in Diff as it will need it to keep it cool.
     
  8. Dec 26, 2010 at 8:21 PM
    #8
    wired_af

    wired_af Well-Known Member

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    I highly recommend the Redline gear oil with the additive already in it. After going through many oil changes and additives , this is the only one that has worked for me.
     
  9. Dec 26, 2010 at 8:25 PM
    #9
    WV_Tacoma

    WV_Tacoma Well-Known Member

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    Not enough
    do you think this amsoil 110sae is to much for our trucks? I tow....
     
  10. Dec 26, 2010 at 8:38 PM
    #10
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    I dont know how good Amsoil is, I tow it too but I have LSD so it was hard to get oil right. Delvac worked with GM additive and it is used in 18 wheelers so its good assurance that if you tow it can handle towing.
     
  11. Dec 27, 2010 at 12:25 AM
    #11
    AFTaco

    AFTaco Well-Known Member

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    I just finished replacing my front and rear diff, and my transfer case with royal purple. I was kinda hesitant about spending $20 a quart, but living in Alaska, cheap synthetic is still expensive. Anyways, I test drove it and I will always use Royal Purple. Remember your first ride in a car with brand new tires installed? Less hummin, smoother drive? Its kinda like how I felt when driving with the Royal Purple. also, if you have the TRD Sport, it already has the LSD additive. My truck only has 15k but I felt that my rear diff had water in it after driving through 3ft of water this summer. come to find out, it didn't have any water. I still do not regret changing my fluilds though. Royal Purple has a new fan!
     
  12. Dec 27, 2010 at 4:15 AM
    #12
    Janster

    Janster Old & Forgetful

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    Hmm thread revival battman....

    Just noticed the guy has a 2010 and he has an AUTO LSD and doesn't need any friction modifiers.

    :D
     
  13. Dec 27, 2010 at 4:30 AM
    #13
    Tepidy

    Tepidy Well-Known Member

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    Toytec Coil Overs 3.00" DSM UCA's (Desert Products) TSB 4 Leaf w/AAL by Pro Comp Bilstein 5100 rear 1"ToyTec SwayBar Drops 1" diff drop Detroit Trutrac Rear Diff Nitro 4.56 Gears Doug Thornley Header MagnaFlow Cat Back Exhaust Custom Built Rear Plate Bumper Custom Built Front Plate Bumper 4X Innovations Rock Sliders ATO Front Skid BAMF Rear Diff Skid Uniden 510XL Pro CB Raceline Renegades BF Goodrich Mud Terrains KM2's 265x75x16 WeatherTechs Rear Diff breather Relocate Intake Resonator Removed Yellow Wire Mod
    11' tacoma SR5 4x4 I use Synthetic 75-90 for both diffs and transfer. No additive needed (changed my rear to detroit mechanical-no clutches)
     
  14. Jul 11, 2017 at 5:00 PM
    #14
    Bravisimo

    Bravisimo So many mods, very little money.

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    My truck has auto lsd, so I should use an LSD additive?
     
  15. Jul 11, 2017 at 6:07 PM
    #15
    Lord Helmet

    Lord Helmet Prepare To Attack

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    No not needed
     
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  16. Jul 11, 2017 at 7:07 PM
    #16
    Bravisimo

    Bravisimo So many mods, very little money.

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    Tint, headlights wrapped & rear lights smoked, power outlet mod., grill & rear bumper wrapped, Falken A/T 3W,
    Thanks man. appreciate it.:thumbsup:
     
    Lord Helmet[QUOTED] likes this.
  17. Jul 11, 2017 at 7:07 PM
    #17
    Lord Helmet

    Lord Helmet Prepare To Attack

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    Yup no problem!
     
  18. Jul 11, 2017 at 7:22 PM
    #18
    07 sport 4x4

    07 sport 4x4 Well-Known Member

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    I use whatever brand of non synthetic 80-90 (I might go with 85-140 next time, that's what east coast gear supply recommends) gear oil and the 4oz champion lsd additive in the rear diff. I use synthetic 75w-90 in the front diff and transfer case. IMG_4958.jpg
     
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