QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 550 lbs/in Rate, 10" Length - 1973-1987 Buick Regal ksport-airtech-air-struts The Function and Form Type

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QA1 CR-S Tapered High Travel Coil Spring - 4.125" ID, 550 lbs/in Rate, 10" Length - 1973-1987 Buick Regal ksport-airtech-air-struts The Function and Form TypeAvailable in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of High Travel Springs for the 1973 1987 Buick Regal 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