{"product_id":"qa1-gm-pro-front-double-adjustable-coilover-system-9-inch-550-lb-spring","title":"QA1 GM Pro Front Double Adjustable Coilover System 9 Inch 550 lb Spring","description":"\u003ch4\u003eAdjustable GM Front Suspension Performance\u003c\/h4\u003e\n\u003cp\u003eThe QA1 GD507-09550D GM Pro front coil-over system delivers adjustable ride height and independent compression and rebound control for GM performance applications. Its 9-inch, 550 lb\/in high-travel springs and lightweight aluminum shocks support street performance, autocross, road racing, drag racing, and street rod use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGD507-09550D front system with double-adjustable shock control\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-adjustable front coil-over shock system\u003c\/li\u003e\n\u003cli\u003eIndependent compression and rebound adjustment\u003c\/li\u003e\n\u003cli\u003e18-position adjustment knob\u003c\/li\u003e\n\u003cli\u003e9-inch high-travel coil springs with a 550 lb\/in spring rate\u003c\/li\u003e\n\u003cli\u003eFully threaded shock bodies for ride height adjustment\u003c\/li\u003e\n\u003cli\u003e0 to -2 inches of ride-height adjustment through the spring-seat nut\u003c\/li\u003e\n\u003cli\u003eBolt-in design with no drilling required according to the listed installation information\u003c\/li\u003e\n\u003cli\u003eCompatible with OE stamped-steel control arms or QA1 tubular control arms\u003c\/li\u003e\n\u003cli\u003eLightweight billet aluminum coil-over shocks\u003c\/li\u003e\n\u003cli\u003e100% dyno tested and serialized\u003c\/li\u003e\n\u003cli\u003eServiceable and rebuildable by QA1 authorized service centers\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eSold in pairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003eThis front system is listed for the GM applications below. Confirm the specific vehicle, suspension configuration, and control arm compatibility before installation.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle application\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003ePosition and notes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet Corvette C2 and C3\u003c\/td\u003e\n\u003ctd\u003e1963-1982\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM Camaro\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePontiac Firebird\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet Nova\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM A-Body\u003c\/td\u003e\n\u003ctd\u003e1964-1972\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM A-Body\u003c\/td\u003e\n\u003ctd\u003e1973-1977\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM A\/G-Body\u003c\/td\u003e\n\u003ctd\u003e1978-1988\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM F-Body\u003c\/td\u003e\n\u003ctd\u003e1967-1969\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM F-Body\u003c\/td\u003e\n\u003ctd\u003e1970-1981\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM X-Body\u003c\/td\u003e\n\u003ctd\u003e1968-1974\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet S-Series Pickup\u003c\/td\u003e\n\u003ctd\u003e1982-2004\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet Sedan\u003c\/td\u003e\n\u003ctd\u003e1955-1957\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet B-Body\u003c\/td\u003e\n\u003ctd\u003e1958-1970\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM B-Body\u003c\/td\u003e\n\u003ctd\u003e1971-1976\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM B-Body\u003c\/td\u003e\n\u003ctd\u003e1977-1990\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM B-Body\u003c\/td\u003e\n\u003ctd\u003e1991-1996\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet C10\u003c\/td\u003e\n\u003ctd\u003e1963-1987\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet C1500\u003c\/td\u003e\n\u003ctd\u003e1988-1998\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuick Riviera\u003c\/td\u003e\n\u003ctd\u003e1963-1965\u003c\/td\u003e\n\u003ctd\u003eFront coil-over system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eGD507-09550D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eFront coil-over shock system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock adjustment\u003c\/td\u003e\n\u003ctd\u003eDouble adjustable with independent compression and rebound control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment positions\u003c\/td\u003e\n\u003ctd\u003e18 positions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring length\u003c\/td\u003e\n\u003ctd\u003e9 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring rate\u003c\/td\u003e\n\u003ctd\u003e550 lb\/in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRide height adjustment\u003c\/td\u003e\n\u003ctd\u003e0 to -2 inches with the spring-seat nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional lowering\u003c\/td\u003e\n\u003ctd\u003eDrop spindles can provide additional drop beyond 2 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation style\u003c\/td\u003e\n\u003ctd\u003eBolt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl arm compatibility\u003c\/td\u003e\n\u003ctd\u003eOE stamped-steel control arms or QA1 tubular control arms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock construction\u003c\/td\u003e\n\u003ctd\u003eLightweight billet aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring construction\u003c\/td\u003e\n\u003ctd\u003eAmerican-made lightweight high-travel springs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTesting\u003c\/td\u003e\n\u003ctd\u003e100% dyno tested and serialized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService\u003c\/td\u003e\n\u003ctd\u003eServiceable and rebuildable by QA1 authorized service centers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturing\u003c\/td\u003e\n\u003ctd\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOne QA1 GD507-09550D front Pro-Coil system\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eCoil springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout QA1\u003c\/h4\u003e\n\u003cp\u003eQA1 develops adjustable suspension components for street performance, autocross, road racing, drag racing, and street rod applications. The QA1 GD507-09550D system is built around lightweight billet aluminum shocks, high-travel springs, adjustable ride height, and serviceable shock construction. QA1 products are dyno tested and serialized, and the company supports service and rebuilding through authorized service centers.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstrong\u003eWhat is the GD507-09550D?\u003c\/strong\u003e\n\u003cp\u003eIt is a QA1 GM Pro front double-adjustable coil-over shock system with a 9-inch spring and a 550 lb\/in spring rate.\u003c\/p\u003e\n\u003cstrong\u003eWhat does double adjustable mean?\u003c\/strong\u003e\n\u003cp\u003eThe shock provides separate compression and rebound adjustment for more precise suspension tuning.\u003c\/p\u003e\n\u003cstrong\u003eHow many adjustment positions are available?\u003c\/strong\u003e\n\u003cp\u003eThe shock has an 18-position adjustment knob.\u003c\/p\u003e\n\u003cstrong\u003eWhat spring rate does this system use?\u003c\/strong\u003e\n\u003cp\u003eIt uses a 550 lb\/in high-travel coil spring.\u003c\/p\u003e\n\u003cstrong\u003eHow much ride-height adjustment is available?\u003c\/strong\u003e\n\u003cp\u003eThe spring-seat nut provides 0 to -2 inches of ride-height adjustment.\u003c\/p\u003e\n\u003cstrong\u003eCan the vehicle be lowered more than 2 inches?\u003c\/strong\u003e\n\u003cp\u003eDrop spindles can provide additional drop beyond 2 inches.\u003c\/p\u003e\n\u003cstrong\u003eWhich control arms can be used?\u003c\/strong\u003e\n\u003cp\u003eThe system is compatible with OE stamped-steel control arms or QA1 tubular control arms.\u003c\/p\u003e\n\u003cstrong\u003eIs this a bolt-in installation?\u003c\/strong\u003e\n\u003cp\u003eYes. The listed installation information describes a bolt-in design with no drilling required.\u003c\/p\u003e\n\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eVerify that the vehicle matches a listed GM application and confirm compatibility with the existing suspension configuration.\u003c\/li\u003e\n\u003cli\u003eUse the system with the existing OE stamped-steel control arms or QA1 tubular control arms.\u003c\/li\u003e\n\u003cli\u003eInstall the front coil-over system in the factory suspension location as a bolt-in assembly. No drilling is required according to the listed installation information.\u003c\/li\u003e\n\u003cli\u003eUse a QA1 T114W or T115W spanner wrench to adjust the spring-seat nut. The required spanner wrench is not stated as included.\u003c\/li\u003e\n\u003cli\u003eSet the spring-seat nut to establish the desired ride height within the 0 to -2 inch adjustment range.\u003c\/li\u003e\n\u003cli\u003eFor more than 2 inches of additional drop, use compatible drop spindles.\u003c\/li\u003e\n\u003cli\u003eTurn the steering wheel to full lock to access the shock adjustment knob at the shock base.\u003c\/li\u003e\n\u003cli\u003eSet compression and rebound using the 18-position adjustment knob, then test the vehicle and refine the settings for the intended driving conditions.\u003c\/li\u003e\n\u003cli\u003eInspect all installed components and confirm that the suspension moves freely before driving.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProp 65 Warning\u003c\/h4\u003e\n\u003cp\u003eCA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.\u003c\/p\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":46502948733007,"sku":"QAPGD507-09550D","price":958.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/qa1-gm-pro-front-double-adjustable-coilover-system-9-inch-550-lb-spring-01.jpg?v=1787846850","url":"https:\/\/www.blackopsautoworks.com\/products\/qa1-gm-pro-front-double-adjustable-coilover-system-9-inch-550-lb-spring","provider":"Black Ops Auto Works","version":"1.0","type":"link"}