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Thread: ATF in transfer case?

  1. #21
    ......... MB's Avatar
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    Just dusted off the old Gregory’s Y61/GU 1998-2014 manual.

    Chapter 7 Part A
    Manual transmissions

    Model FS5R50B
    TB45E, TB48DE, ZD30DDTi, TD42
    SAE 75W-90 GL4
    3.5 Litres
    &
    Model FS5R30A
    RD28ETi
    SAE 80W-90 GL4
    5.1 Litres

    Chapter 7 Part B
    Automatic transmission

    Model RE4R03A = Four-speed
    Nissan Matic D or Dexron III
    Approximately 12.0 Litres
    &
    Model RE5R05A = Five speed
    Nissan Matic J
    Approximately 11.0 Litres

    Chapter 7 Part C
    Transfer case
    Model TX12A
    Fitted to all models
    Nissan Matic C or SAE 75W-90 GL4
    1.9 Litres

    Certainly is weird that they specify both a tranny “or” gear fluid with no other explanation throughout Part C.

    Will have to scour Part B I guess?







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    PeeBee (27th December 2019)

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  4. #22
    Patrol Freak jff45's Avatar
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    Quote Originally Posted by PeeBee View Post
    John, that's interesting for sure. I would not have thought the oil properties for an ATF would be suitable for a gear loading application - obviously they are especially if you have been doing this for close to 13 yrs! Learnt something new today.
    The planetary gears in the auto trans take a fair bit of loading. I'm rebuilding an RE4 auto at the moment that has done 326k kms and, although the clutches are well worn, the planetary gears look perfect.
    John

    2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body

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  6. #23
    Patrol God mudnut's Avatar
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    A more experienced and wiser member explained it all a very long time ago. Early GQs ran gearbox oil in their Transfer cases.(Hence the listing calling for Gear Box Oil) . Mark, please check the year of publication. It was found that the shaft running through the Transfer case could cause the chain to rotate, making the front drive train turn. It was more prominent in colder weather. My '94 runs Auto Trans Fluid, but has manual hubs.

    I would expect auto hubs to try and engage if the heavier gearbox oil was used.
    Last edited by mudnut; 27th December 2019 at 02:05 PM.

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  8. #24
    Advanced pollenface's Avatar
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    Thanks for your replies. I did a bit of reading here too and it sounds satisfactory.
    https://www.patrol4x4.com/threads/tr...ase-oil.30931/
    2008 CRD Wagon, 182,000kms and counting....

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  10. #25
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    Sounds fair thanks Craig mate, will dump the gear oil and take the safer second option for her auto hubs


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  11. #26
    Patrol God mudnut's Avatar
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    This is from the downloaded GQ manual:
    Attached Images Attached Images

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  13. #27
    Patrol God mudnut's Avatar
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    And this is the GU manual.
    Attached Images Attached Images

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    yes . it's a viscosity thing , the friction of the free spinning gear in the TC spins the front driveshaft /diff and engages front hubs . people hear noises comeing from hubs and complains to mr nissan . mr nissan says use lower viscosity atf and viola!! no more warranty complaints . atf being a very good quality oil does the job just fine , just a bit more expencive

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