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4x4 question

Discussion in '2.5 Gen Tundras (2014-2021)' started by awq735, Apr 11, 2019.

  1. Apr 11, 2019 at 1:19 AM
    #1
    awq735

    #1
    awq735 [OP] New Member

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    Anthony
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    Does the tundra have freewheeling hubs when not in four wheel drive? If so, how are the engaged/disengaged? Mechanically, electrically, or with vacuum? I'm trying to find out as much as possible about these trucks before I head to the dealership next week.

    Thanks
    Anthony
     
    awq735, Apr 11, 2019
    #1
  2. Apr 11, 2019 at 2:55 AM
    #2
    koditten

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    koditten I am easily distract...look! A squirrel!

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    No. It has a differential disconnect type front axle.
     
    koditten, Apr 11, 2019
    #2
  3. Apr 11, 2019 at 4:35 AM
    #3
    Wynnded

    #3
    Wynnded What MPG...

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    Electrically actuated.
     
    Wynnded, Apr 11, 2019
    #3
    15whtrd likes this.
  4. Apr 11, 2019 at 6:30 AM
    #4
    awq735

    #4
    awq735 [OP] New Member

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    As in when I'm driving the front axle is rotating? If so, does the drive shaft rotate as well(disengaged at the transfer case) or is it stationary(disengaged at the front differential)?
     
    awq735, Apr 11, 2019
    #4
  5. Apr 11, 2019 at 6:49 AM
    #5
    osidepunker

    #5
    osidepunker OsidePunker

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    disengaged at the transfer case
     
    osidepunker, Apr 11, 2019
    #5
  6. Apr 11, 2019 at 4:49 PM
    #6
    1engineer

    #6
    1engineer New Member

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    Automatic Disconnecting Differential. ADD.
     
    1engineer, Apr 11, 2019
    #6
    awq735[OP] and koditten like this.
  7. Apr 11, 2019 at 5:16 PM
    #7
    awq735

    #7
    awq735 [OP] New Member

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    Thanks for letting me know what roots calls it. That allowed me to lookn it up and understand how it works. Much appriciated
     
    awq735, Apr 11, 2019
    #7
    1engineer[QUOTED] likes this.
  8. Apr 11, 2019 at 5:21 PM
    #8
    csuviper

    #8
    csuviper Moderator Staff Member

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    Some Mods :) See build thread for details
    Drive shaft and CV axles are always rotating. Kinda lame. Haven't done the locking hubs since like 1995
     
    csuviper, Apr 11, 2019
    #8
    1engineer likes this.
  9. Apr 11, 2019 at 5:27 PM
    #9
    awq735

    #9
    awq735 [OP] New Member

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    I was suprised to learn that. My F150 has vacuum operated hubs, which can and had been troublesome at times. Im guessing that also hurts gas mileage a bit.
     
    awq735, Apr 11, 2019
    #9
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