Rear leaf spring rates - Pirate4x4.Com : 4x4 and Off-Road Forum
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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.
91 Toyota SAS Truck
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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.
'86 Toyota Mini. Diamonds. 35's.
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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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