Front Diff, Transfer Case, how to change fluid. - Page 8
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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; Thank you so much for this post!! I just bought my 05 ESV last week with 111,000 on it and ...
  1. #106
    jd_mpmt's Avatar
    jd_mpmt is offline Cadillac Owners Member
    Automobile(s): 2005 Escalade ESV Silver
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    Smile Re: Front Diff, Transfer Case, how to change fluid.

    Thank you so much for this post!! I just bought my 05 ESV last week with 111,000 on it and have no idea when these fluids were changed. I ordered by AMSOIL and Ill complete this all next week. Caddy dealer did a full Trans service with new filter as part of my buy deal but I forgot to demand AMSOIL . Ive been running it in my JEEP and in the past all my Harleys have run on it. Great products IMO....Thanks again to others as a new and never before Caddy owner stuff like this is worth its weight in gold....well almost

  2. #107
    jd_mpmt's Avatar
    jd_mpmt is offline Cadillac Owners Member
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    Oh and you guys were not kidding about the fill level of the transfer case. I took the fill plug about and about 3/4 of a quart shot right over my pan. I'm amazed how much was in there. Hit for another newbie like me use two pans or a longer tray instead of a traditional oil pan like I used.

  3. #108
    CEPMAN is offline Cadillac Owners Fanatic
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    Re: Front Diff, Transfer Case, how to change fluid.

    How much (ball park) would one be looking at to replace all three?

  4. #109
    Je357 is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    thanks for the write up...did my front diff today..smooth cause of your directions...

  5. #110
    LongRX7 is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    I was planning to use 75w140 Valvoline full synthetic gear oil in the front diff and the 75w90 in Valvoline full synthetic gear oil in the rear diff for my 2005 Escalade AWD. Do you think there would be any adverse effect? Autozone didn't have enough Mobil One full synthetic gear oil. Still expensive... $13 each for 3 qts of 75w140 and $11 each for 4 qts 75w90. So like $90 for all. Couldn't find and Dex III or Dex VI for the transfer case... The had something like Merc/Dex combo???

  6. #111
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    Slapperbar is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    Why 140? Is there something wrong with your front diff? You may see a slight drop in fuel mileage with the 140.

  7. #112
    LongRX7 is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    lol...cause that's what Patrick uses? Is there a reason I shouldn't use 140? It does say light truck and SUV on it... Listening and learning....

  8. #113
    Slapperbar's Avatar
    Slapperbar is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    FSM section 6-13.

  9. #114
    boge is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    Great post ! I won't sleep until I change my fluids

  10. #115
    LongRX7 is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    Just drained and replaced my front and rear diff. Used Valvoline full synthetic 75w90 on both. Only drained about 1 3/4 quart out the rear diff. Added a little over 4 1/4 quarts. Rear diff lube, looked nasty black. Not too hard to refill with 1 quart bottles. Only drained about 1 1/2 quart out the front diff. Filled a little under 2 quarts into the front. Front diff fluid was still pretty clear. Refilling took forever, next time I will definitely use a pump like Patrick did. Haven't done the transfer case yet, having trouble finding Dex III.

    Changed the oil too

    Did all of this without jacking up or raising the Escalade

    Going to have CNG installed in it this week, so I figured I better do the rear diff at least

  11. #116
    boge is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    I'm seeing a lot of debate between dex 3 and 6 for the grander case. Would I be alright with using the ac delco transfer case fluid auto trak ll part no 10-4017. And does anyone know where I can get a pump to use to get the fluid up into the differentials and xref case

  12. #117
    48548m is offline Cadillac Owners Fanatic
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    Auto trakII is only for part time 4 wheel drive with the auto 4 wheel drive button only. Not awd or 3/4 ton and up.

  13. #118
    icaddy is offline Cadillac Owners Fanatic
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    Re: Front Diff, Transfer Case, how to change fluid.

    Guys, have you read the Owner's manual? According to the manual, the "proper level is from 5/8 inch to 1-5/8 inch
    (15 mm to 40 mm) below the bottom of the filler plug hole, located on the rear axle."

  14. #119
    Z71's Avatar
    Z71
    Z71 is offline Cadillac Owners Connoisseur
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    Re: Front Diff, Transfer Case, how to change fluid.

    AutoTrac II should only be used in the transfer case 2006 and earlier vehicles. DO NOT use it in any differential as failure will result.

    Dexron VI CAN ONLY be used in 2007 up BW4485 rpo NR3 (Borg-Warner).

    DO NOT use 75W-140, its a heavy fluid and will result in reduced fuel economy and could cause the front axle to generate more heat to overcome the thick lube, it will be like molasses in cold temps. 75W-140 is primarly for use in HD Fords and other HD rear axle. GM recommends 75W-90 synthetic on all it SUV's and trucks.

    You can find one of these at just about any auto parts store or order it on line at link below
    ...Fluid Pump

  15. #120
    boge is offline Cadillac Owners Member
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    Re: Front Diff, Transfer Case, how to change fluid.

    Thanks for the info guys and the link z71

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