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Shackle flip problems? and flex

Discussion in 'The Garage' started by 1982blazer, May 3, 2007.

  1. 1982blazer

    1982blazer 1/2 ton status

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    What do yall think of my pinion angle?
    What about my shackle angle?
    Did i get the spring hangers on the right sides?
    And finialy did i put my springs in back wards?
    Baisicly did i totaly screw up and have to redo every thing thanks in advance and for helpin a noob out:(. I just want to be 100% sure before i tear back into it.

    IMG_0210.JPG

    IMG_0213.JPG
     
    Last edited: May 13, 2007
  2. blind driver

    blind driver Registered Member

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    Dunno, I can't see the pics :screwy:
     
  3. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    First pic = irrelevant , no weights on it .

    Second pic , if the weights on it , is not so good . Mine isn't perfect either , but its ( shackle itself ) farther back than that .

    Is your weight at its max now , or do you still have stuff you don't have loaded in the rear yet ?

    You may end up needing to move the flip bracket .

    The pinion angle , if on the ground , looks fine for using a CV shaft .
     
    Last edited: May 3, 2007
  4. twoslo4five0

    twoslo4five0 3/4 ton status Premium Member GMOTM Winner

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    i have mine wrong to also but the other way too much angle...
     
  5. 1982blazer

    1982blazer 1/2 ton status

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    In the second pic all the weight is on the truck. I am using the stock drive shaft. Here are some better pics ,with the truck on the ground i dont have the gas tank back in yet but other than that im done.
    So i might have to move my hangers back. and one last thing how do i tell if i put my springs in back wards.

    IMG_0208.JPG

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  6. Cajun4x4

    Cajun4x4 1/2 ton status

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    youll need to move the hangers forward to get a better angle.. thats what i did on my truck, however my angle wasnt quite that bad...
     
  7. gmc4cw

    gmc4cw 1/2 ton status GMOTM Winner

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    your shackle angle is terrible. measure your springs from the center of each end. seems weird that the angle would be that bad. the pinion angle looks OK.
     
  8. twoslo4five0

    twoslo4five0 3/4 ton status Premium Member GMOTM Winner

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    is it just me or does the axle seem to be sitting a 1/2 an inch to an inch forward...i swaer my old mud bogg truck looked just like this when i made a homebrew shackle...i think i remeber someone on here telling me a flip will not move the axle foward no matter what..weird..
     
  9. Cajun4x4

    Cajun4x4 1/2 ton status

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    whoever said that was wrong, its simple geometry.. take a pencil in your hand and hold it level on either end, now pivot your right hand down holding your left hand constant, does your right hand not move to the left
     
  10. twoslo4five0

    twoslo4five0 3/4 ton status Premium Member GMOTM Winner

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  11. BigEasy

    BigEasy 1/2 ton status

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    The rear axle does seem a little too far foward to me just by looking at the pics. :dunno:
     
  12. 454k30

    454k30 1/2 ton status GMOTM Winner

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    that looks like a normal shackle flip forward position. the angle on that shackle doesnt look good though, like the spring is too short or has no weight on it.
     
  13. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Should look like this with the weight of the truck on it . The original poster never did say it was off the off the jackstands yet .


    [​IMG]
     
  14. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Its not moved forward enough for any significance , that picture is more of an optical illusion , the rear fender fang is cut off , so the tire looks closer to the front of the wheelwell than the rear .
     
  15. 1982blazer

    1982blazer 1/2 ton status

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    The truck is off the jack stands, i just removed all the pictures from this thread that show the truck on jack stands. so now in all the pictures the truck is on the ground. The weight is at max minus the gas tank,every thing is put back together.
     
  16. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Well then yes your bracket needs moved forward . Although when those brand new ( well they look nice and new ) springs get some use and settle , it should move back a little anyway .

    I can't tell you how it relates to wheeling , or any real technical information on it , but the guys on this board seem to like the shackle laying back a lot . Mine is straight up and down basically and its not a problem . It lays down when more weight is added or the axle/spring compresses , and swings forward when the axle droops .

    I did read this , its about racing with leaf springs , but has some good information about shackles . http://www.bedfordspeedway.com/toolbox_leaf.htm
     

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