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Is 4x4 a 50/50 split?

Discussion in 'Off-Roading & Trails' started by memario1214, Dec 31, 2010.

  1. Dec 31, 2010 at 4:18 PM
    #1
    memario1214

    memario1214 [OP] Vivid Illumination Vendor

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    I was just wondering if our trucks transfer power to a 50/50 split between front and rear when we put it into 4wd? We have had quite a bit of snow up here and I was just experimenting one day and to me anyway, it doesn't feel like it is. Secondary question, if it is, is there anything that exists to where a driver can (via electronic switch or manually) change the power distribution from 50/50 to say... 80/20? Just wondering, and thanks for any help.
     
  2. Dec 31, 2010 at 4:19 PM
    #2
    tacomakid96

    tacomakid96 Can you skin Grizz, pilgram?

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  3. Dec 31, 2010 at 4:56 PM
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    tacomazach

    tacomazach Well-Known Member

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  4. Dec 31, 2010 at 4:57 PM
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    whippersnapper02

    whippersnapper02 Well-Known Member

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    Yes 50/50 and no switch. Only AWD vehicles can vary power distribution because of the center diff they have. The center diff is the main difference between AWD and 4wd vehicles.
     
  5. Dec 31, 2010 at 5:01 PM
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    solus

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    50/50 only... sorry
     
  6. Jan 1, 2011 at 2:44 AM
    #6
    Janster

    Janster Old & Forgetful

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    Like everyone else has already said..... 50/50. That's what a transfer case is/does. It's only a direct drive to both front & rear (via chain/shafts). And it also has gearing for 4lo but still the same direct drive front to rear.

    All wheel drive vehicles don't have a transfer case. They have a 'center differential' with special internals to transfer power front to back. Some AWD vehicles have that same 'special' internals in the front & rear differentials to transfer power side to side.
     
  7. Jan 1, 2011 at 11:41 AM
    #7
    whippersnapper02

    whippersnapper02 Well-Known Member

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    AWD vehicles do have a transfer case. The difference between 4wd ans AWD is the internals of it.
     
  8. Jan 1, 2011 at 2:44 PM
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    DevL

    DevL Well-Known Member

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    All wheel drive allows the front and rear to have a differing amount of torque applied so that the total rotation of the front and rear drive shafts can differ for cornering. You can , depending on the design of the AWD center differential, still get the binding sensation from turing in 4WD but its much, much less. The more ability for the transfer case to shift torque the more of a binding feeling you get on tight turns... its vastly superior to 4WD High for on road use. Its inferior for offroad use unless you lock it.... in which case it acts just like a normal 4WD vehicle.

    4WD is also not 50/50, it can be 50/50 or anywhere from 0 to 100. A differental for AWD might be capable of 25/75 but if one axle is in mud getting 0% traction, 75% of 0 is still 0. A 4WD system will allow 100% of torque to go to one axle.
     
  9. Jan 1, 2011 at 3:09 PM
    #9
    BrettBretterson

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