Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 20" Spring Rate (lbs/inch):200 Bilstein B6 Performance Dampers for

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Swift Springs Standard Coilover Spring (Barrel Type) - ID: 3.75" / Length: 20" Spring Rate (lbs/inch):200 Bilstein B6 Performance Dampers forSwift Springs Standard Coilover Springs (Barrel Type) in 3. 75" ID and 20" length are the longest large bore barrel springs available from Swift, designed for maximum travel suspension setups on heavy vehicles and off road applications using 3. 75" ID coilover dampers. These Swift barrel coilover springs are manufactured in Japan from proprietary H5S. TW high tensile alloy steel, ensuring spring deflection is eliminated even at this extended length.