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  • Spring Identification

    Is there a way to tell how many leaves are in my spring while it is in my Truck?

    Visibly I see only 6 leaves.


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  • #2
    It has to be a 10 leaf spring because it fills the cross member. An eight leaf spring recesses in a good 1/2" and requires different spring clip bars. Of course that doesn't tell us which of three 10 leaf springs it is.

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    • #3
      Here is a tech thread showing Marco's spring chart, for further identification

      https://www.vintagefordforum.com/for...nt-spring-info
      3 ~ Tudor's
      Henry Ford said
      "It's all nuts and bolts"


      Mitch's Auto Service ctr

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      • #4
        Originally posted by Marco Tahtaras View Post
        It has to be a 10 leaf spring because it fills the cross member. An eight leaf spring recesses in a good 1/2" and requires different spring clip bars. Of course that doesn't tell us which of three 10 leaf springs it is.
        Thanks Marco.

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        • #5
          Originally posted by Mitch View Post
          Here is a tech thread showing Marco's spring chart, for further identification

          https://www.vintagefordforum.com/for...nt-spring-info
          Thanks Mitch, have seen this , but does not seem to tell you how to ID what you have when it is mounted in the truck.

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          • #6
            Originally posted by 1930 Closed Cab PU View Post
            Is there a way to tell how many leaves are in my spring while it is in my Truck?

            Visibly I see only 6 leaves.

            Small spring on beige car is Roadster, larger spring on blue car is Tudor. A true proper pickup spring would appear like the Tudor but with main leaf and second leaf both thicker than the rest.
            Attached Files

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            • #7
              With a 12" piece of 3/16" dowel, you can slide it up the top of the spring and count the leafs you encounter. the smallest (last one) will be about 10" or 12" long, so 5" or 6" from the center bolt. I just apply a little downward pressure and count the drops of the dowel as I pull the dowel out, add one leaf for the one I ran into at the top, and voila!

              Thinking about it you may have had the best tool in your hand already.

              I turned the flash on my phone camera and took this pic up the rear spring of my project car for this winter.

              Rear Spring.jpg
              Last edited by Hank B; 09-30-2020, 11:42 AM. Reason: Added a Pic.

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              • #8
                Originally posted by 1930 Closed Cab PU View Post
                Thanks Mitch, have seen this , but does not seem to tell you how to ID what you have when it is mounted in the truck.
                I'm adding a larger version of the chart in an attempt to make it easier to read the thickness of the color coded leaves. If you follow the flow lines of the 10 leaf springs (A, D, E) you'll find each of the three springs include a different combination of thicknesses on the bottom two leaves. That means you can measure your bottom two leaves and determine which combination matches your pickup.

                It's worth noting that pickups used spring "D" until mid 1929. At the end of 1928 Ford added the slightly heavier spring "E" for use on the soon to be released Station Wagon. In May 1929 Ford changed the pickup requirement to spring "E" and made spring "D" obsolete.

                With the introduction of the 1930 models, Ford brought back the "D" spring for use on all new Fordor models.

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