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drive line vibration after 3" lift install

Discussion in '2nd Gen. Tacomas' started by tacoman2u, Apr 16, 2011.

  1. Apr 16, 2011 at 6:51 AM
    #1
    tacoman2u

    tacoman2u [OP] Member

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    3" Readlift lift kit. spidertrax 1.25" spacers 285/70/17 Terra Grapplers
    I just installed a 3" readylift and now have drive line vibration between 20/30 mph. anyone know of a fix for this?
     
  2. Apr 16, 2011 at 6:56 AM
    #2
    bridgcat

    bridgcat Well-Known Member

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    try a carrier bearing drop. It might fix some of it. The only true method of fixing it is to get a one piece drive saft I believe.
     
  3. Apr 16, 2011 at 10:48 AM
    #3
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    Try the CB drop first , cheap and easy
     
  4. Apr 16, 2011 at 10:49 AM
    #4
    ColtsTRD

    ColtsTRD .....

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    x2 ^


    And have you gotten an alignment yet?
     
  5. May 14, 2011 at 7:16 AM
    #5
    tacoman2u

    tacoman2u [OP] Member

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    3" Readlift lift kit. spidertrax 1.25" spacers 285/70/17 Terra Grapplers
    thanks for the info i just bought the CB drop. hope this works im getting pissed off. this is a brand new truck and i love the 3" lift. looking for nice chrome wheels with red beadlocks any suggestions?
     
  6. May 14, 2011 at 7:17 AM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    4.10 gears, sliders, and lots of buttons.
    Before you instal any drops, Check the torque of the U bolts. They need to be at 75#
     
  7. May 14, 2011 at 7:28 AM
    #7
    tony92629

    tony92629 Well-Known Member

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    Yes - Its the drive line angles. Shim in the rear and or CB drop in the front. Anything over 3" of lift changes the drive line angles which will create vibrations.
     
  8. May 14, 2011 at 7:30 AM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    Lets not jump on the angle bandwagon yet. Of all the lifts I have installed on these trucks, NONE have had vibes after propperly torquing the bolts. Not saying its not the angles, but start with the easy stuff first.
     
  9. May 14, 2011 at 8:55 AM
    #9
    650H1

    650H1 Well-Known Member

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    its def the angles, these trucks are fussy about that, i have the same thing. went with a 4 degree shim but thats too much, i just ordered a 2 degree shim and those will be almost perfect. if i were you id go with 2 degree shims, and flip the rubber that surrounds your carrier bearing so its upside down, thatll fix it
     
  10. May 14, 2011 at 9:31 AM
    #10
    Crom

    Crom Time is precious; use it wisely

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    The pinon angle must match the output shaft (1st drive shaft after the transmission) angle. If they don't match you're going to experience vibrations.

    See this Dana document for a comprehensive explanation. And this thread is also helpful.

    [​IMG]
     
  11. Jun 3, 2011 at 11:20 PM
    #11
    tacoman2u

    tacoman2u [OP] Member

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    3" Readlift lift kit. spidertrax 1.25" spacers 285/70/17 Terra Grapplers
    thank you all for your suggestions. will start with the u-bolts, then the CB drop if that doesn't work. cant wait to get this resolved so i can get wheel and tire combo.
    thanks again
     
  12. Jun 3, 2011 at 11:28 PM
    #12
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    Interesting , my Haynes manual , and my mechanic's online database both said 37 Ft lbs
     
  13. Jun 3, 2011 at 11:29 PM
    #13
    A7XTaco

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    I just installed 5100's set at 1.75 with TSB leafs. Amazingly I have no real vibrations to speak of... Except the little (very slight) I have at 55-60, but that started after the TSB install.

    Judging by what I have gathered, the only angle that has changed is between the carrier and diff... With that being said, I think the only thing I should have to do is shims on the diff to return it to factory angles. One of these days I'll get around to trying it.
     
  14. Jun 3, 2011 at 11:32 PM
    #14
    tacoman2u

    tacoman2u [OP] Member

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    3" Readlift lift kit. spidertrax 1.25" spacers 285/70/17 Terra Grapplers
    oh yeah, i got it aligned the same day i lifted it.
     
  15. Jun 4, 2011 at 6:38 AM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    4.10 gears, sliders, and lots of buttons.
    Thats wrong.
     
  16. Jun 4, 2011 at 6:53 AM
    #16
    tonyplanet

    tonyplanet Well-Known Member

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    enough to get me there
    I would go with 90# minimum. From what I have been reading in TTORA forums most are running 90-95#. And I think some guy quoted Deaver as saying 110#. But I do agree 37# is wrong and just crazy, and asking your axle to fall off.
     
  17. Jun 4, 2011 at 7:06 AM
    #17
    Crom

    Crom Time is precious; use it wisely

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    My u-bolts came loose after I got the TSB leafs. I presume this was due to the dealer tech following the wrong information in the FSM.
     
  18. Jun 4, 2011 at 8:27 AM
    #18
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    I know what I am doing today .

    We re-torqued all my suspension components to the FSM specs last week , I've been driving around with my U-bolts @ 37 for about 5 days
     
  19. Jun 4, 2011 at 10:52 AM
    #19
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Thor

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    FlimFlubberJAM
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    More than likely. Anyone who has been wrenching on suspensions for over a year, will know the FSM is wrong, and calculate the propper torque values.
     
  20. Jun 4, 2011 at 10:55 AM
    #20
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    For those of us that haven't it would be nice if they corrected the fucking values in the FSM and Haynes manuals
     
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