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Thread: Differential Fluid

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  1. #1
    Join Date
    Dec 2007
    Location
    Union, MO
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    510

    Differential Fluid

    What is the best gear oil to put into the differential? I have a 2004 2WD with the 4.8 liter.
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  2. #2
    Join Date
    Aug 2008
    Location
    North Texas
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    12,078
    The GM synthetic fluid. It's really high though.

  3. #3
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    So...say I were to go to Auto Zone or O'reilys?
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  4. #4
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    Aug 2008
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    Not sure what they have that's equivalent. Someone does though.

  5. #5
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
    510
    I know they sell a sycromesh an additive
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  6. #6
    Join Date
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    North Texas
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    Synchromesh is manual transmission fluid.

  7. #7
    Join Date
    Dec 2007
    Location
    Union, MO
    Posts
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    Whoops! I was meaning LSD additive, but I'm pretty sure mine doens't have that.
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  8. #8
    Join Date
    Aug 2008
    Location
    North Texas
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    12,078
    They don't need additive if you use the proper $30 per bottle GM stuff.

  9. #9
    Join Date
    Dec 2007
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    Union, MO
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    I just called O'Reilys and they have the 80-90W Lucas and Royal Purple. Which ones better?
    2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit

  10. #10
    Join Date
    Oct 2005
    Location
    drinking your alcohol
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    2,967
    i use royal purple..... but thats just a thing that i do... all pluids in my truck are RP..... if its better or not i dont know
    Quote Originally Posted by DamnYankee View Post
    lol...I wish you would never paint your truck...I bet it bugs them that much more that a primered up truck just soggied his Wheaties. good job buddy
    sprayedenali: i like catching, but not fishing
    DBTBSS: bring Tyler... we need someone to make fun of
    MidnightRider: your right im gay
    DamnYankee: my nana failed
    DamnYankee: confused...if it can't keep up to begin with, how can it keep up
    mitch cobb racing: ya, allen played with it for a while, HUGE difference

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