QA1 Pro Coil System High Travel Coil-Over Spring - 3.8 in Upper ID - 2.5 in Lower ID - 9 in Length - 450 lb Transmission Cooler Mount Kit Check out all our products

Check out all our products from Wilwood Engineering including Brake / Clutch Pedal Assemblies

Silverado 3500 Classic 2007

Short water pump pulley style (1955-68)

Windage/Anti-Slosh Baffle

QA1 Pro Coil System High Travel Coil-Over Spring - 3.8 in Upper ID - 2.5 in Lower ID - 9 in Length - 450 lb Transmission Cooler Mount Kit Check out all our productsAvailable 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.