QA1 Expands Spring Rate Offering for GM Pro Coil Systems

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QA1 is excited to add 600 and 650 lb. spring rates for its GM front Pro Coil Systems.
Designed for GM A, G and F-Bodies, Chevy S-10’s and Tri-5 Chevys, QA1’s 600 and 650 lb. made in the USA springs provide performance-style handling and support vehicles with heavier front end weights. These 10 inch, conical springs can be purchased separately or with QA1 GM Pro Coil Systems, making it easy to upgrade a GM style front suspension set up. The 600 lb. spring will support vehicles with a front end weight between 2201-2300 lbs. and the 650 lb. spring will support vehicles with a front end weight between 2301-2400 lbs.

QA1’s GM Pro Coil System springs are silver powder coated for excellent longevity and the ultimate in appearance. They are manufactured using the highest quality materials for high strength, consistency and durability. QA1’s springs are lifetime guaranteed to remain within 2% of their original free length under normal operating conditions.

To go along with the 600 & 650 lb. springs, QA1 also offers 300, 350, 400, 450, 500 and 550 lb. springs for its GM Pro Coil Systems.

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Founded in 1993, QA1 is an industry leader in performance shocks, rod ends and suspension components for motorsports, offering the most complete line of shock absorbers for the racing / performance market of any manufacturer. QA1 has more than 85,000 square feet of office and manufacturing space in Lakeville, Minnesota. The state-of-the-art facility includes a complete line of CNC machines, injection- molding machines, CNC press brakes, hydraulic presses, filament winding and laser cutting equipment that permit all inclusive shock absorber and suspension component manufacturing and assembly operations. QA1’s quality system is certified to the ISO 9001:2008 standard.