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Diff drop vibes

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Nelz1, Aug 23, 2011.

  1. Aug 23, 2011 at 8:22 AM
    #1
    Nelz1

    Nelz1 [OP] Well-Known Member

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    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    I leveled my Tacoma with the Bilstein 5100's the front end CVs where crying when I turned the wheel (when moving slowly) So I installed the toytec 1 inch diff drop and my bad CV vibration went away but now have a new slight vibration in the steering wheel:confused:?
    Can the one inch diff drop be to much I'm thinking of trimming the spacer to 3/4 inch to troubleshooyt?? Anyone ever run into this?
    Could I be dropping to much?
     
  2. Aug 23, 2011 at 8:35 AM
    #2
    mjp2

    mjp2 Living vicariously through myself Moderator

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    Remove the differential drop. On the 05+ Tacomas it does far less than you might think it does.

    The math:
    The graph (from the same thread)
    [​IMG]

    You're rotating your front differential more than you're dropping it, which can cause vibrations from the increased front driveshaft u-joint angles and internal lubrication issues as the oil is shifted away from the rear of the housing where the pinion is.
     
  3. Aug 23, 2011 at 9:06 AM
    #3
    Nelz1

    Nelz1 [OP] Well-Known Member

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    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    Without the diffrop the vibration was aweful you could feel the CVs binding at low speed turns but the diff drop remedied that but its the new very light vibe I have after dropping the diff that I'm trying to resolve- pitching the diff back is scary when you say oil isnt getting to where it should be..
    Thanks for your reply!
     
  4. Aug 23, 2011 at 9:15 AM
    #4
    mjp2

    mjp2 Living vicariously through myself Moderator

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    Got any pics of your CVs at ride height? What setting are you using on your 5100s?
     
  5. Aug 23, 2011 at 9:23 AM
    #5
    Nelz1

    Nelz1 [OP] Well-Known Member

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    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    I dont have photos (I should have measured but pre and post front lift but I did not)
    I leveled it so I think it was .85 setting-- before I cut the spacer down to say 3/4 inches I might do a temporary spacer and see if its the fix (perhaps a 3'4" stack of fender washers?)

    Nelson
     
  6. Aug 23, 2011 at 9:26 AM
    #6
    OZ-T

    OZ-T You are going backwards

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    Wah ?

    Shouldn't be CV issues at .85
     
  7. Aug 23, 2011 at 9:43 AM
    #7
    mjp2

    mjp2 Living vicariously through myself Moderator

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    Exactly what I'm thinking. CVs might be dry or something else could be wrong.
     
  8. Aug 23, 2011 at 10:20 AM
    #8
    Nelz1

    Nelz1 [OP] Well-Known Member

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    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    Thanks for all the input!!

    Nelson
     
  9. Aug 23, 2011 at 10:21 AM
    #9
    OZ-T

    OZ-T You are going backwards

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    How did you pinpoint your noise to the CV's , something else could be binding up
     
  10. Aug 23, 2011 at 11:45 AM
    #10
    Nelz1

    Nelz1 [OP] Well-Known Member

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    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    This is what happened- drove fine -5100 went in still felt good no vibes unless turning slow the cv's were making vibration when I put the diff drop in no more cv turning vibration now since the diff drop I have a slight vibration in the steering wheel,,,I really thing 1 inch is to much for a spacer and that there is a fine line were I can make it all right-
     
  11. Aug 23, 2011 at 11:54 AM
    #11
    OZ-T

    OZ-T You are going backwards

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    I'm not doubting you , just saying it would be hard to pinpoint exactly where the noise / vibes are coming from when you are in the cab .


    CV issues with only a .85 lift is uncommon
     
  12. Aug 26, 2011 at 3:59 AM
    #12
    Nelz1

    Nelz1 [OP] Well-Known Member

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    07 Tacoma DC TRD - 20 Tacoma DC off road
    Bilstein 5100 leveled bed panels fabricated, bed d rings, fog light mod.
    I believe the CV shaft is straight 0 degrees from diff to hub (does anyone have any input on this)
    I went to dealer and measured a new Tacoma on what looked like a flat surface to be 0 degrees. My trucks passengers side CV shaft seems angled up about 10 degrees? drivers side is at zero.
    So I plan to remeasure but has anyone measure the shaft angle for pitch prior to lift install?
     

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