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Thread: 2inch drop shackle with shim vibration

  1. #16
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    got it fixed they tell you to put the shims in with the thick part towards the front i dont know about you guys i think the front is where the hood is well i took it to a shop they flip the shims towards the back (tailgate) rides like a caddy called ground force guy was like uh ok yea we will note that anyway on to the next step supercharger see how that works out

  2. #17
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    I had a feeling that was it...hmmmmmmm how many times did I ask...

    but yeah I agree with ya...makes sense to me that the front = where da hood at

  3. #18
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    i asked the guy at ground force that 3 times oh they go towards the front anyway thanks for the help

  4. #19
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    glad to see it worked out

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    Thumbs up

    Quote Originally Posted by bgstew6
    removing a block will not effect the pinion angle as long as the block is flat on the top and bottom which I am pretty sure those are.......

    the addition of a drop shackle will....and depending on the amount of drop will dictate what degree shims are needed to get the pinion angle back in the sweet zone....

    best thing to do and maybe easiest would be to put the kit on with the provided shims...make sure you truly put them on the right way...head over to a drive train shop and have them check your pinion angle..if it is off then they should have the shims (for Purchase) to get it right...then you could install them yourself....

    Just my .02
    I'm with Stew on this one,,,,
    IN MEMORY OF
    Blake (Fuzion) Finnel 12-3-1986 - 08-11-2007
    NHTOC #120

  6. #21
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    The thick part of the block goes toward the back in order to compensate for raising the rear part of the leaf spring and getting the front of the rear end in line with the driveshaft.

  7. #22
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    the trucks with the 2 piece drive shafts are going to need shims for the carrier bearing and axle. Bring it to a reputable chassis shop and they should be able to help you out.

  8. #23
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    Removing blocks does change angle.It is the dif between driveshaft and pinion that is being changed that creates vibration.

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    Funny...

    I am running the drop shackles on the lowest mounting hole and no blocks.

    The shims are still in the box and I have no vibrations at all. It rides like glass.

    The truck is 3/8"-1/2" nose low. Perfect!

    Caution: Don't put any weight in the bed...It will drag a$$ at that point.

    Of course, mine is my wife's grocery getter, so no issue there. If there's weight to be hauled..we use the superduty.
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  10. #25
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    man that looks gooooooood.......

  11. #26
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    Moma's grpcery getter....gotta' love it.

    And...Thank you.

  12. #27
    World's Fastest Street HD
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    more pics more pics!!!
    loving that new body style more and more

  13. #28
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    If I remove the 2 in blocks. Can I still haul something with it? I have a KFX 700 Quad. She only weights 500 pounds. I don't care if she sags a little when I carry it. I just don't want to create some drivetrain problem by doing this.
    Last edited by wayne106; 06-18-2007 at 11:58 AM. Reason: Added more details.

  14. #29
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    as long as the pinion angle is correct so you dont have undue wear on the u-joints and no vibrations, and there's still some clearance between the frame bump stops and axle, should be plenty fine

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