QA1 CR-S Pigtail High Travel Coil Spring - 3.57" ID, 550 lbs/in Rate, 10" Length - 1957 Chevrolet Del Ray Regal Bilstein EVO R for the

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QA1 CR-S Pigtail High Travel Coil Spring - 3.57" ID, 550 lbs/in Rate, 10" Length - 1957 Chevrolet Del Ray Regal Bilstein EVO R for theAvailable in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of High Travel Springs for the 1957 Chevrolet Del Ray with a silver powder coated finish. Made in the USA, these 2" I. D. High Travel Springs are manufactured from specially designed high tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the