Bw44-44

Discussion in 'Tech Info' started by bluesport2014, Oct 9, 2015.

  1. loveracing1988

    loveracing1988 Senior Member

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    Yeah this thread is for a completely different transfer case.

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  2. Hootbro

    Hootbro Senior Member

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    Interesting since nothing in the owners manual recommends using anything but the BW 44-44 fluid. Could by chance you get some published tech info that your dealership used to justify going outside the OM recommendations?
     
  3. loveracing1988

    loveracing1988 Senior Member

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    He doesn't have a 44-44 hence the recommendation to not run the fluid.

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  4. Hootbro

    Hootbro Senior Member

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    I get that, the point is the owners manual states only one transfer case fluid regardless if you have a 44-44, 44-45, 44-46 or 44-47 and that is 68089195AA "AKA" BW 44-44 fluid.

    My question is still valid to him of where his dealership gets the info to use a GL-4 gear lube for his 44-47?
     
  5. loveracing1988

    loveracing1988 Senior Member

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    Ohh, OK now I get it. I honestly never made it far enough to change it but I definitely wouldn't have put the 44-44 fluid in.

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  6. Hemi395

    Hemi395 Senior Member

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    I've never heard of a modern transfer case requiring gear oil. To my knowledge it's always an ATF or an ATF derivative
     
  7. Hootbro

    Hootbro Senior Member

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    The only reason I ask is that I have a 44-47 manual shift transfer case in my Tradesman and is of interest to me where this GL-4 gear lube use comes from?

    I get the 44-44 and 44-46 use a clutch pack assembly and use of a BW 44-44 fluid would be prudent. With the 44-45 and 44-47 being a manual transfer case without the clutch pack, I can in theory see the use of a GL-4 gear oil being used, but I want to find some definitive published data and not use third hand hear-say on the matter.
     
  8. loveracing1988

    loveracing1988 Senior Member

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    The 44-44 is on its own. The 44-45, 44-46, and 44-47 are all the same internally. It doesn't matter how it is shifted.

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  9. Hootbro

    Hootbro Senior Member

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    You sure on the 44-46? It is the 4WD "Auto" transfer case on the HD models and just assumed it had the same clutch pack setup as the 44-44.
     
  10. loveracing1988

    loveracing1988 Senior Member

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    There is no auto transfer case in the HD trucks... It is either a shifter on the floor or a shifter on the dash, but they both has the same settings.

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