QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 500 lb. RU003003XL Sport Series

Sport Series

1955-1957 Chevrolet Two-Ten Series

Straight stemmed XH-424 stainless exhaust valves and NK-841 stainless intake valves have chrome stems

2003-2006 GMC Savana 1500

2005-2014 Ford Mustang

QA1 High Travel Coil-Over Spring - 2-1/2" I.D. x 10" Tall - 500 lb. RU003003XL Sport SeriesPowder Coated, Chrome Appearing Silicon Manganese SteelAll QA1 springs are manufactured using the highest quality chrome silicone. This material offers high strength, consistency and longer life. Cold Wound Heat Treated Shot PeenedAll QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared EndsAll QA1 springs are ground at both ends to ensure straight, consistent and accurate operation.