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Loud clunk when shifting out of 4wd high

Discussion in '2nd Gen Tundras (2007-2013)' started by ktrout, Nov 8, 2019 at 11:38 AM.

  1. Nov 8, 2019 at 11:38 AM
    #1
    ktrout

    ktrout [OP] New Member

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    2012 4.6 4wd 66K miles. Following the manual's instructions, I usually drive in 4 wheel high for approx 10 miles on straight dry road. Never a problem until last 3 times. No noise shifting into 4 wheel high, but LOUD clunk shifting back to 2wd. Happens at 10 mph or 50 mph. Truck hasn't been off road in 4wd for a year.
     
  2. Nov 8, 2019 at 1:04 PM
    #2
    Scuba

    Scuba Sober member

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    Can you feel the clunk?
    Does it feel or sound like it's coming from the transfer case or front differential?
    When was the last time you've changed the oil in the transfer case or front diff?
     
  3. Nov 8, 2019 at 1:21 PM
    #3
    ktrout

    ktrout [OP] New Member

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    Can definitely feel the clunk, I believe from the front. Oil in transfer case & front diff has never been changed.
     
  4. Nov 8, 2019 at 3:00 PM
    #4
    Scuba

    Scuba Sober member

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    Then I would start by servicing both of those.
     
  5. Nov 8, 2019 at 3:15 PM
    #5
    15whtrd

    15whtrd Mr. Blonde

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    TRD Pro suspension, +2 Coachbuilder shackles, 2015 TRD Pro headlights, 20% ceramic tinted windows, charcoal filter delete, aFe drop in pro s dry air filter, TRD airflow accelerator, TRD oil fill cap, TRD 18 psi radiator cap, BDX Bullydog tuner, Weathertech floor mats front and rear, rear seat fold down mod, Tyger soft tonneau cover, Linex with uv protection, TRD swaybar, TRD center caps, TRD Pro grille insert, aluminum oil filter canister, Real truck tailgate seal, Pop-n-lock tailgate lock actuator, rear diff breather relocate, RCI front skid plate.
    All your tires are the same size age and manufacture? Psi is where it should be?
     
    koditten likes this.
  6. Nov 8, 2019 at 4:57 PM
    #6
    timsp8

    timsp8 Member

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  7. Nov 8, 2019 at 5:04 PM
    #7
    koditten

    koditten New Member

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    This. If all tires are not same diameter, you WILL get a loud clunk.
     
    15whtrd likes this.

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