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Rear Coil Spring

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If we have rear coil springs with a rate of 250 lb/in, the two springs have a combined rate of 500 lb/in. If the sprung weight at the rear of the vehicle is 1,500 pounds, that means the spring will be compressed 3 inches when the vehicle is sitting on the coil suspension. It’s important to know your sprung weight when picking coils to closely hit your targeted ride height.