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Old 06-07-2006, 06:34 PM   #1 (permalink)
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Rear leaf spring rates

I searched but can't find this, call me a noob.

Does anyone know the spring rates of each of the leafs of a stock rear spring pack? Or at least which one is the stiffest?

I am trying to add a leaf into my chevy pack to help level my rear with the SASed front end and I want to know which leaf has the highest spring rate. I stood on them and it seems that the main leaf is the stiffest but it was hard to tell. This is a pack out of a 91.
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Old 06-07-2006, 06:40 PM   #2 (permalink)
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They are all the same thickness, and same width.

THe shorter ones are stiffer, but thats only because you calculate the spring rate of a leaf spring baised upon the length of the leaf. Cut down the main leaf, and it will be the same rate as the 3rd leaf, etc.
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Old 06-07-2006, 08:19 PM   #3 (permalink)
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search for spring rate formula

you will find this
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