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Old 01-09-2010, 10:50 AM
Three Peaks Three Peaks is offline
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Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
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I believe the QA1 site has a spring rate calculator. Check the angle of your shocks and plug it into the calculator and you should come up with a close estimate of the weight of springs you will need.
From your description and the weight rating of your springs, it seems they are way too light.
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