QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 450 lb/in Spring Rate - Single Pigtail H762003S 9 in Tall x 4-1/2

9 in Tall x 4-1/2 in Diameter

seat hardness up to 42 HRc and super flo to improve flow design

Everything needed to attach external engine components and accessories

1978-1987 Buick Regal CID 350 RWD

1991-1998 Chevrolet C2500

QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 450 lb/in Spring Rate - Single Pigtail H762003S 9 in Tall x 4-1/2Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs 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 larger distance between the coils.