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1975-1980 Pontiac Grand Prix
High burst strength and holds 28% more torque than typical organic materials
E6R and E6DSR ignition systems
770 in Effective Stud Length
The hubs are available in all common bolt patterns with 1/2" or 5/8" studs
QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 450 lb/in Spring Rate - Single Pigtail 91629029 1975-1980 Pontiac Grand PrixAvailable 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.
