QA1 Pro Coil High Travel Coil-Over Spring Coil-Over 3.500" ID 10.0" Length - 500 lb/in Spring Rate Braided Nylon Hose Easy-to-use software for both novice

Easy-to-use software for both novice & experienced tuners

GM Fullsize Truck 1963-66

1972-1974 GMC K15/K1500 Suburban

Bearings and outer races are crowned to eliminate lobe tracking

When you put one a TCI® product on your vehicle

QA1 Pro Coil High Travel Coil-Over Spring Coil-Over 3.500" ID 10.0" Length - 500 lb/in Spring Rate Braided Nylon Hose Easy-to-use software for both noviceAvailable 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.