CalTrac/Traction Bar Measurement

Suspension, Steering and Chassis

  1. gradedcatfood

    gradedcatfood 1972 Plymouth Duster 440

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    Hey everyone, I plan on building my traction bars with the help of this post: How to Build Modern Traction Bars

    I wanted to know if anyone could please measure their caltrac bellcrank and give me the distance between the pivot hole and the transfer point/pressure point (please see photo). I know the post says to measure down where the second spring starts and half that measurement but my stock springs come out to a unreasonable number (I believe that is just a guide anyways)

    I'm guessing 5 inches will work but if anyone could break out the measuring tape and help me out that would be great!

    I have a 1972 duster and plan on putting split mono leafs before I build these traction bars if that helps any.

    Also, any advice building these would be greatly appreciated.

    Thanks!

    image6.jpg
     
  2. SPACECOWBOY

    SPACECOWBOY Well-Known Member

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    I wil measure mine when I get home if you don't have a answer by then.
     
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    • SPACECOWBOY

      SPACECOWBOY Well-Known Member

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      4" x 4"
       
    • gradedcatfood

      gradedcatfood 1972 Plymouth Duster 440

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      Thank you very much! I'm a bit surprised at the 4X4 as I thought it would be closer to 5 but that sounds good to me.

      Thanks!
       
    • SPACECOWBOY

      SPACECOWBOY Well-Known Member

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      20181004_183152.jpg 20181004_182743.jpg 20181004_182538.jpg Here are some pictures.
       
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      • gradedcatfood

        gradedcatfood 1972 Plymouth Duster 440

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      • SPACECOWBOY

        SPACECOWBOY Well-Known Member

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        No problem
         
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