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Tried a 4crawler 3 degree shim, vibration is worse??

Discussion in '2nd Gen. Tacomas (2005-2015)' started by PreRunner, Apr 8, 2010.

  1. Apr 8, 2010 at 7:27 PM
    #1
    PreRunner

    PreRunner [OP] Well-Known Member

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    2010 Prerunner
    Reg Cab / 2.7L / 5-Spd
    Icon Ext / Camburg 1.25

    Installed deaver J66 ten leaf pack with 5100's. Slight vibration, mostly in third gear deceleration.

    Installed custom made deaver AAL with 5125's and 4crawler 3 degree axle shims (2"x4.5"). Another 1.25" acheived. Third gear vibration slightly more pronounced. Second gear vibration appears, almost as strong as third. First and fourth nice and smooth. Fifth unknown due to traffic.

    Extremely happy with new stance. Want to effectively eliminate or reduce vibration. What is my next move? :sadviolin:

    [​IMG]
    [​IMG]
     
  2. Apr 8, 2010 at 7:28 PM
    #2
    ttylerr

    ttylerr Well-Known Member

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    did you try running the second setup without the shims?
     
  3. Apr 8, 2010 at 7:30 PM
    #3
    Razorecko

    Razorecko Well-Known Member

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    ...try the carrier spacer from toytec. For the $10$ it cut down my vibration to almost non-existant
     
  4. Apr 8, 2010 at 7:33 PM
    #4
    johnw

    johnw Well-Known Member

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    well you asked for specs..... 06 trd sport speedway blue V-6 4.0 camburg lift spindles extended travel icons total chaos lowers allpro 4" leaf pack 17" xd hoss rims 305/65/17 mickey thompson baja atz Allpro hybrid bumper with 3 kragen HID lights color matched headlights grill craft grill AFE stage 3 CAI wicked flow muffler under cover bed cap inside i have..... wet okole real tree camo seat cover blue oznium dome light stealth sub box with 2 10" kicker comp subs kicker 400 watt amp weathertech floor mats
    or get 2 plates of 3/8" steel 2inchx1.5 and drill a hole get new bolts = cheaper than $10 plus $11 shipping
     
  5. Apr 8, 2010 at 7:34 PM
    #5
    trg37

    trg37 Well-Known Member

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    The only thing I could get to fix my vibes was to get a cv joint cut into my driveshaft and then shim my rear axle to the correct angle for that type of driveshaft. It cost a decent amount, but I would have paid it ten times over to fix it if I had known that was what I needed. I do not know how many hours and shims and u bolts I went through trying to correct my operating angles on my single cardan driveshaft with no resolution. Worth the money in my mind and vibes are gone!
     
  6. Apr 8, 2010 at 7:36 PM
    #6
    trg37

    trg37 Well-Known Member

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    Carrier will not help him, because he does not have a carrier bearing. He has a one piece driveshaft because it is regular cab. Only access/double cabs have carrier bearing (two-piece driveshaft).

     
  7. Apr 8, 2010 at 7:37 PM
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    PreRunner

    PreRunner [OP] Well-Known Member

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    unfortunately no. AAL and shims installed at same time. i read that u-bolts can only be used once, so i had them both done at same time. :(
     
  8. Apr 8, 2010 at 7:38 PM
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    PreRunner

    PreRunner [OP] Well-Known Member

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    someone correct me if i'm wrong, but i don't think i have a carrier bearing like you guys do.
     
  9. Apr 8, 2010 at 7:41 PM
    #9
    trg37

    trg37 Well-Known Member

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    +1

     
  10. Apr 8, 2010 at 7:44 PM
    #10
    Tillers_Rule

    Tillers_Rule ......................

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    For those of us without machine shops, the $22 Toytec charges isn't too bad if it works.
     
  11. Apr 8, 2010 at 7:48 PM
    #11
    Razorecko

    Razorecko Well-Known Member

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    Thanks for the clarification, I did not know that
     
  12. Apr 8, 2010 at 8:01 PM
    #12
    PreRunner

    PreRunner [OP] Well-Known Member

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    thanks alot guys. i guess ill have them pull the shims and see what happens.

    if it improves great, if not i will have to look into the cv option, thanks!

    i guess the question now is, was it the shims or the AAL thats doing this? :confused:
     
  13. Apr 8, 2010 at 8:06 PM
    #13
    PreRunner

    PreRunner [OP] Well-Known Member

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    hrmm then im curious how much vibe there will be when i pull the shims ...

    with the shims, i installed fat end toward the back. just throwing that out there in case i got it wrong.
     
  14. Apr 11, 2010 at 7:33 PM
    #14
    trg37

    trg37 Well-Known Member

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    If you read some information online about driveshaft angles and operating angles between your driveshaft, your pinion, and your transfer case you will have a better understanding of what is going on. With the standard single cardan driveshaft you want your operating angles between the transfer case and the driveshaft, and between your pinion and your driveshaft to match or be within one or two degrees under load (acceleration). When you increased your rear lift height, it threw these angles off. In order to match my operating angles, I acutally had to rotate my pinion nose down which required me to install the shims with the fat side towards the front. When I did this, my angles all matched, but it did not matter because the actual angle of my driveshaft was too great for the stock u-joints. I also tried shimming with the fat side towards the rear, this is what you do with a cv driveshaft, and this did not help either. You should take the time and read this link about driveshafts and angles etc. It is very helpful.

    http://www.pirate4x4.com/tech/billavista/PR-shaft/index.html

    Long story short, no matter how perfect my operating angles were the actual driveshaft angle was too great for my truck and the stock setups, even when my operating angles under acceleration matched exactly. When I converted my standard single cardan driveshaft to a double cardan cv driveshaft and angled my pinion towards my transfer case with the same angle as the driveshaft I finally eliminated my vibes. This is because this driveshaft is designed to work at these angles unlike the stock single cardan driveshaft. Read that link. It is great info!
     
  15. Apr 11, 2010 at 7:40 PM
    #15
    Janster

    Janster Old & Forgetful

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    Yup....

    To the OP - reinstall the shims with the fat side in the front (closest to cab)
     
  16. Apr 11, 2010 at 8:10 PM
    #16
    NakedTacoma

    NakedTacoma Well-Known Member

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    just remove the shims.....i have a reg cab too but in a mini....and i have LT in the rear with a 50T pack(deaver h70 equivalent) and i run no shims and i have no problems ...and im sure mt drive shaft is about the same or worse angle than urs.
     
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