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Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, Front Diff, Transfer Case, how to change fluid. in Cadillac Escalade Forums; Changed fluids today, great post. Marine pump worked flawless, available at Walmart for $10...
  1. #121
    augdogg is offline Cadillac Owners Member
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    Changed fluids today, great post. Marine pump worked flawless, available at Walmart for $10

  2. #122
    texdlyght's Avatar
    texdlyght is offline Cadillac Owners Member
    Automobile(s): 2002 Escalade
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    I was wondering if Mobile one synthetic ATF would be alright to use in my transfer case in my 02 AWD Escalade?

  3. #123
    Z71's Avatar
    Z71
    Z71 is offline Cadillac Owners Connoisseur
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    Re: Front Diff, Transfer Case, how to change fluid.

    Yes according to my Motor Information Guide, as long as its a Dexron III fluid, need 5 pints.


    This information applies to 2007 and prior GM passenger cars and trucks.

    Dexron III is being phased out as a product name. It is being renamed ManualTransmission Fluid and carries p/n 88861800 U.S. (88861801 Canada).

    If fluid p/n 88861800 U.S.(88861801 Canada)is not yet available when servicing a manual transmission or transfer case,Dexron III can be used in its place.

    DO NOT use Dexron VI in place of manual transmission fluid in any manual transmissions or transfer cases that specifyDexron III, as a failure may result.

    - Thanks to Charles Krepp, TAC

  4. #124
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    Slapperbar is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    5 is too much, 2 filled the NR3 case in my ESV.

  5. #125
    texdlyght's Avatar
    texdlyght is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    Thank you for the replies, I've changed the oil in my front diff and transfer case both with synthetic mobile one oil but I've been reading a few different threads and I've just seen someone talking about an additive that needs to be added to the front and rear diffs. I'd just like to know before something bad happens. Is the "anti-slip" additive really needed?

  6. #126
    48548m is offline Cadillac Owners Fanatic
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    No because these aren't posi's with clutches. Also most synthetic comes with it built in.

  7. #127
    Z71's Avatar
    Z71
    Z71 is offline Cadillac Owners Connoisseur
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    Re: Front Diff, Transfer Case, how to change fluid.

    2000-2013 Cadillac Escalade, ESV, EXT equipped With a Locking Rear Differential RPO G80

    All light duty trucks/SUVs equipped with RPO G80 make use of a locking differential and the use of additives will delay the engagement of the locking mechanism and may decrease axle life.

    Note-thats not to say you cannot use any gear that says its suitable for use in limited slip differentials. Its the additive that you should not use, different chemistries.


    Note - Rear axle additives are designed for use in limited slip differentials which are normally installed in cars.




  8. #128
    Pitbull14218 is offline Cadillac Owners Fanatic
    Automobile(s): 2002 White Diamond EXT
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    Re: Front Diff, Transfer Case, how to change fluid.

    I just changed he front diff fluid in my 02 EXT, it didnt look dark when it was coming out but in the pan(black) it looked dirty. I used Mobil one 75w90 full synthetic LS........

    Every parts store I went to all the synthetic gear oil was for limited slip differentials... Mobil one said hybrid synthetic for use in either, so I hope it's ok to use.

    I still hear a grinding noise the same as before I changed the gear oil. It might be my transfer case, so ill be doin that next.

  9. #129
    safchin is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    just looked up the lucas synthetic sae 75w-90 gear oil trans and diff lube they call it (NEW AND IMPROVED) it has a rating from brookfield viscosity of 80,000 cps.

    ----------

    check the viscosity on lucas sae 75w-90 synthetic new and improved its 80000 not 200000cps

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