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  • 2 Post By 36 sedan
  • 1 Post By DennyW
  • 2 Post By Scooting
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Thread: Leaf Spring Question
          
   
   

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  1. #1
    ranchero68/69's Avatar
    ranchero68/69 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1968 ranchero
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    Leaf Spring Question

     



    I have a 1968 Ranchero I put new leafs in it and the driver's side sits exactly one inch lower than the passengers side. I would like to reArk the drivers side so it sits level is that something they can do, can they put exactly a one inch lift into the spring when they reArk it. Guess what I am asking is how much of a exact science is rearking leaf springs.
    Bil
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  2. #2
    firebird77clone's Avatar
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    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
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    You need someone who works it in-house, because it is a bit of a hit and miss, and it might take a couple of tries.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
    EG

  3. #3
    36 sedan's Avatar
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    Car Year, Make, Model: 36 Ford Sedan, 23 T Bucket
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    JMHO, but if you installed new springs, either the springs are incorrect or something is missing/wrong on one side.

    If you set both springs on top of each other and the arc is the same, then something else is wrong. It could be spring tension or a spacer block misplaced. Could even be a mismatched shackle. I would make sure there isn't something wrong with the springs or install before attempting to correct it by arcing springs...
    NTFDAY and cffisher like this.

  4. #4
    Driver50x's Avatar
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    Did it sit level before the spring change? The out of level condition could also be caused by a problem with the front springs.
    Steve

  5. #5
    firebird77clone's Avatar
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    Car Year, Make, Model: 69 nomad, 73 charger, 74 vega
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    My 69 chevelle nomad sat low on drivers side, I did a full spring swap, and it still sat low on driver side, especially when the fuel tank was full, because it is on the drivers side. I ended up shimming the coils on that side.
    .
    Education is expensive. Keep that in mind, and you'll never be terribly upset when a project goes awry.
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  6. #6
    34_40's Avatar
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    Car Year, Make, Model: 34 Ford 3W Coupe Replica
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    Do you have a spring shop close by you? It isn't so much science as they can apply force to change the arc. but like said above, the front spring can also be causing an issue, the mount at the axle must be the same on both sides as well, check the shackle and bushings are the same on both sides.. HTH

  7. #7
    DennyW's Avatar
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    Measure all 4 corners of the bumper to the ground. Compare the 2 fronts, then the 2 backs. The box is much lighter than the front. So, if sitting in the vehicle, the left front would be the drivers side. I'm sure you know this, but some do not. So, if the drivers side is say 14", and the passengers side is 16", you have a 2 " difference. Now, measure the back Drivers side. Say the drivers side is 13", and the passengers side is 17". It would be the front springs are tired, and need changing. By the way, on my 68 Ranchero, with the 410 engine. I used 6 leaf springs on the rear, and it worked super. New one's in the front, and all was good.
    glennsexton likes this.

  8. #8
    Scooting's Avatar
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    Like all the replies are saying check everything first. I would think a new set should be the same.
    To answer your question about spring arcs, you need to go to a place that does spring work for heavy duty trucks, dump trucks - Semi trucks. They are the most knowledgeable. I took a 4 wheel drive van in once and a 350 Ford Centurion another time, was looking to raise both with new springs. I gave them the dimension I wanted, measured from the floor to the bottom of the front bumpers for both, 6 inch lift on one - 4 inch on the other. Came back to pick them up and pulled out my tape measure and each time they were exactly on the number on both sides. Not a 1/16 off but exact measurement. Sign of a professional shop that knows what a quality job means to a customer. (and they rode like a charm, not stiff but like a luxury car.)
    Last edited by Scooting; 12-30-2019 at 09:27 PM.
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  9. #9
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    I'll ask the obvious, but have you driven the Ranchero since replacing the springs? New springs need a few miles on them and some bumps to take their final set. All it takes is one bushing with a bit of a catch in at or even an over tightened bolt to make a vehicle sit high on a corner.
    Driver50x likes this.
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