QA1 Spring, Cr-Si Ht High Travel 4.125" 10" X 400 Lbs/In. Tapered Silver Pc (1970-2004 Chevrolet, GMC, Oldsmobile, Pontiac, Buick Fitment) - 10HTBF400

QA1 Spring, Cr-Si Ht High Travel 4.125" 10" X 400 Lbs/In. Tapered Silver Pc (1970-2004 Chevrolet, GMC, Oldsmobile, Pontiac, Buick Fitment) - 10HTBF400

Available 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. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions. Chrome Silicon Steel, All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. Cold Wound - Heat Treated - Shot Peened, All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared Ends, All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. Lengths and Rates Marked, All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification. Made in the USA, QA1's high travel springs are proudly made in the USA. LIFETIME GUARANTEE, All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

High travel coil spring with a 400 lb spring rate. Tapered end. Made with chrome silicon and has a silver powder coat finish. 4.125" inner diameter and a 10" length.

QA1 specializes in providing performance shocks, suspension components, carbon fiber driveshafts, rod ends, ball joints and more to a variety of automotive markets, including circle track racing, drag racing, street performance, and street rodding. With over 83,000 square feet of manufacturing space in Lakeville, MN, QA1 is proud to offer an extensive line of American-made suspension and driveline. Founded in 1993 by Jim Jordan, QA1 introduced rod ends and spherical bearings specifically for the performance racing industry, quickly becoming the #1 name in rod ends, spherical bearings, custom linkages and similar products to the motorsports industry. Always on the cutting edge of technology, QA1 recently introduced in-house filament winding of carbon fiber and similar materials to provide driveshafts and other products. With continued focus on fine-tuning and expanding its offering of American-made high performance suspension components and carbon fiber driveshafts, QA1 has grown to be a household name in the performance aftermarket.