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Humming from front end

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Schonher16, Apr 17, 2018.

  1. Apr 17, 2018 at 1:35 PM
    #1
    Schonher16

    #1
    Schonher16 [OP] Well-Known Member

    Joined:
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    Gillett PA
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    2014 TRD Off Road Spruce Mica
    ARMOR: Mobtown Offroad front bumper SUSPENSION: 3 inch OME and Dakars JBA Off-road UCAs LIGHTS: Cali Raised 3x2 pods
    So I have a 2014 DCSB with a 3 inch lift and 32s have a weird on and off humming between 40 ish and 60 ish. I've already checked the play and so did the shop and nothing was off any idea guys?
     
    Schonher16, Apr 17, 2018
    #1
    BassAckwards likes this.
  2. Apr 17, 2018 at 1:36 PM
    #2
    BassAckwards

    #2
    BassAckwards Well-Known Member

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    Does the hum go away when u flip into 4high?

    My guess is either front diff needle bearing or wheel bearings

    If it goes away in 4wd, its the needle bearing. Check out east coast gear supply. They have a solid replacement that solves this issue
     
    BassAckwards, Apr 17, 2018
    #2
  3. Apr 17, 2018 at 1:39 PM
    #3
    Schonher16

    #3
    Schonher16 [OP] Well-Known Member

    Joined:
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    Gillett PA
    Vehicle:
    2014 TRD Off Road Spruce Mica
    ARMOR: Mobtown Offroad front bumper SUSPENSION: 3 inch OME and Dakars JBA Off-road UCAs LIGHTS: Cali Raised 3x2 pods
    Huh I'll have to check that and I'm not sure if it was my drop bearing kit either I took it off but might put it back on and see but I'll check the 4wd
     
    Schonher16, Apr 17, 2018
    #3
    BassAckwards likes this.
  4. Apr 17, 2018 at 2:43 PM
    #4
    Schonher16

    #4
    Schonher16 [OP] Well-Known Member

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    Vehicle:
    2014 TRD Off Road Spruce Mica
    ARMOR: Mobtown Offroad front bumper SUSPENSION: 3 inch OME and Dakars JBA Off-road UCAs LIGHTS: Cali Raised 3x2 pods
    It did go away once we put it in 4-wheel drive
     
    Schonher16, Apr 17, 2018
    #4
  5. Apr 17, 2018 at 3:06 PM
    #5
    peteyfresh

    #5
    peteyfresh Well-Known Member

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    Yep, front diff needle bearing
     
    peteyfresh, Apr 17, 2018
    #5
    Schonher16[OP] likes this.
  6. Apr 17, 2018 at 3:56 PM
    #6
    Schonher16

    #6
    Schonher16 [OP] Well-Known Member

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    2014 TRD Off Road Spruce Mica
    ARMOR: Mobtown Offroad front bumper SUSPENSION: 3 inch OME and Dakars JBA Off-road UCAs LIGHTS: Cali Raised 3x2 pods
    It just must not be disengaging all the way then?
     
    Schonher16, Apr 17, 2018
    #6
  7. Apr 17, 2018 at 4:31 PM
    #7
    peteyfresh

    #7
    peteyfresh Well-Known Member

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    No, it's disengaging fine. There is a needle bearing in the left side of the front differential that when goes bad will make a cyclical grinding or groaning noise in 2wd. When switched to 4wd the noise will go away.

    I recommend taking it to the dealership for replacement. Special tools are required.
    P/N 90364-35008 needle roller bearing
    P/N
    $12 90311-47027 Toyota Oil Seal - 90311-47027
    90311-47027 oil seal
     
    peteyfresh, Apr 17, 2018
    #7
  8. Apr 17, 2018 at 4:52 PM
    #8
    REDdawn6

    #8
    REDdawn6 Well-Known Member

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    REDdawn6, Apr 17, 2018
    #8

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