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Front diff noise

Discussion in '2nd Gen. Tacomas' started by wfbont007, Sep 9, 2007.

  1. wfbont007

    wfbont007 [OP] Well-Known Member

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    I have a 2006 4x4 four door Tacoma with a 3 inch Toytec lift. When I drive down the street at around 40mph, it sounds like I have mudders on my truck. There is a distinct hum but I don't have mudders and it sounds like my front diff case. If I put the truck into 4 wheel high when the hum starts, it goes away. At road speed there is no hum. When I decelerate to come to a stop, the hum begins at 40 mph and lasts for a couple of seconds before it stops. Anybody heard of this problem or have recommendations?
     
  2. maverick491

    maverick491 Towing Guru

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    Activator III brake controller, Extang Fulltilt toneau, Factory bed mat, Extra D-rings in the bed, 2ndary air filter removed, Garmin Ique GPS, Eco-2, AFE Pro Dry-s filter, USASPEC PA12-toy, Pioneer 3-way speakers, SG II on Blendmount, Gulf States Alarm added.
    When you did your lift did you do a front diff drop also?

    I have heard that tacoma's have problems with the CV joints when lifted, but I do not have any first hand experience with this, just things I have heard.
     
  3. wfbont007

    wfbont007 [OP] Well-Known Member

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    I did the front diff drop also. Today, I removed the drop and test drove and the noise was still there. I re-installed the drop and still there. The noise is inconsistent, sometimes it is more noticeable than others.
     
  4. maverick491

    maverick491 Towing Guru

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    07 4x4 Access Cab, TRD off road, 6 cyl, 6 spd
    Activator III brake controller, Extang Fulltilt toneau, Factory bed mat, Extra D-rings in the bed, 2ndary air filter removed, Garmin Ique GPS, Eco-2, AFE Pro Dry-s filter, USASPEC PA12-toy, Pioneer 3-way speakers, SG II on Blendmount, Gulf States Alarm added.
    Sorry, I am at a loss then, though I suspect that come monday morning when they are back at their computers some of the members more knowledgable about lifting trucks than I am should be able to help you.
     
  5. wfbont007

    wfbont007 [OP] Well-Known Member

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    Is there a possibility that the front drive shaft is turning by 4x4 isn't engaging?
     
  6. wfbont007

    wfbont007 [OP] Well-Known Member

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    Just got the truck back from the dealer. He told me that because there are no shims on the back end for the diff, it is causing a vibration in my front diff/ transfer case. I'm not buying it. Going to a 4x4 shop tomorrow.
     
  7. wfbont007

    wfbont007 [OP] Well-Known Member

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    Truck is fixed. Rear shims did the trick.
     
  8. nd

    nd Radical Town. It's a hell of a place!

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    nice, glad to hear you got it taken care of. I'm gonna add the toytec in the future and i'm glad to know what to do if i have the same problem
     
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