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Noise in front diff after regear only in 4wd

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Nrtacoma, Oct 29, 2016.

  1. Oct 29, 2016 at 8:24 PM
    #1
    Nrtacoma

    Nrtacoma [OP] New Member

    Joined:
    Oct 21, 2016
    Member:
    #200336
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    Male
    Vehicle:
    2009 silver dcab 4x4
    Volant cai procomp 6inch lift xd 18x9 monster wheels 35x12 nitto terra grappler 4.56 nitro gears
    Hey everybody any answers to this or ideas would be a huge help had my tacoma regeard to 4.56 nitro gears my truck is 09 tacoma 4wd 4.0 v6 truck and i had all the guts in the front replaced bearings seals you name it and only In 4wd does it make a noise like its a bearing or the ring and pinion are not set right the shop pulled it apart replaced everything thinking they got a bad bearing and still the noise is there it is not the normal werrr of the gears it's an intermittent grind buzz noise no pattern every few seconds buzz buzz grind grind and only on deceleration I have looked allover the threads and seems no one has had this problem any help would be appreciated
     
  2. Oct 29, 2016 at 8:53 PM
    #2
    Ruggybuggy

    Ruggybuggy Well-Known Member

    Joined:
    Oct 11, 2015
    Member:
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    NW ONT, CANADA
    Vehicle:
    2020 Tundra SX
    Wow that's one long sentence! Obviously the shop did something wrong. Take it back to them and tell them to make it right. My guess is they didn't set up the gears right and you have a bad tooth contact pattern. Google gear tooth contact patterns for more info.
     
  3. Oct 30, 2016 at 8:10 PM
    #3
    Nrtacoma

    Nrtacoma [OP] New Member

    Joined:
    Oct 21, 2016
    Member:
    #200336
    Messages:
    2
    Gender:
    Male
    Vehicle:
    2009 silver dcab 4x4
    Volant cai procomp 6inch lift xd 18x9 monster wheels 35x12 nitto terra grappler 4.56 nitro gears
    Been there done that the shop and the gear guy are very reputable they are going to rip it apart again in a week or so and try to find out what it is
    his measurements are good patterns are good and so on
     

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