QA1 High Travel Coil-Over Spring Coil-Over 2.500" ID 9.0" Length - 140 lb/in Spring Rate Automatic Transmission Cooler Installation Kit This is the pump that

This is the pump that started it all

Weight springs made with stress-relieved music wire to assure blueprinted advance curve (USA)

Designed to work with any latch type belt system

Fully synthetic

2011-2014 Ford F-550 Super Duty

QA1 High Travel Coil-Over Spring Coil-Over 2.500" ID 9.0" Length - 140 lb/in Spring Rate Automatic Transmission Cooler Installation Kit This is the pump thatQA1 offers an assortment of high travel springs, available in 7", 9", 10", 12", 14" and 16" lengths, with a silver powder coated finish. These springs are lighter and have increased travel due to the larger distance between the coils. 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. These