{"product_id":"qa1-gm-pro-front-coil-over-system-single-adj-10in-x-550lbs-in-flat-large-aluminum-1","title":"QA1 GS507-10550C Front Coil-Over Kit for 71-96 Chevy Impala Caprice 550lb","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1971-1996 Chevrolet Impala (B-Body, RWD)\u003c\/li\u003e \u003cli\u003e1966-1991 Chevrolet Caprice (B-Body, RWD)\u003c\/li\u003e \u003cli\u003e1958-1981 Chevrolet Bel Air (B-Body, RWD)\u003c\/li\u003e \u003cli\u003e1958-1972 Chevrolet Biscayne (B-Body, RWD)\u003c\/li\u003e \u003cli\u003e1958 Chevrolet Del Ray (B-Body, RWD)\u003c\/li\u003e \u003cli\u003eFull-size Chevrolet, Buick, Oldsmobile, Pontiac, Ford, Edsel and Mercury applications utilizing the compatible suspension architecture supported by QA1.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Notes\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eFront suspension only.\u003c\/li\u003e \u003cli\u003eDesigned for compatible GM full-size B-Body applications.\u003c\/li\u003e \u003cli\u003eCompatible with OE stamped steel control arms and QA1 tubular control arms.\u003c\/li\u003e \u003cli\u003eRecommended for vehicles with approximately 2,101-2,200 lb front-end weight.\u003c\/li\u003e \u003cli\u003eRide height adjustable through the threaded shock body.\u003c\/li\u003e \u003cli\u003eQA1 spanner wrench (T114W or T115W) required for spring adjustment and sold separately.\u003c\/li\u003e \u003cli\u003eOptional QA1 thrust bearing kit (7888-109) simplifies ride-height adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eSingle-adjustable twin-tube shock with simultaneous compression and rebound adjustment.\u003c\/li\u003e \u003cli\u003e18-position damping adjustment for personalized ride quality.\u003c\/li\u003e \u003cli\u003e10-inch high-travel USA-made 550 lb\/in coil springs.\u003c\/li\u003e \u003cli\u003eThreaded aluminum shock body provides up to approximately 2 inches of ride-height adjustment.\u003c\/li\u003e \u003cli\u003eLightweight billet aluminum shock construction reduces unsprung weight.\u003c\/li\u003e \u003cli\u003eBolt-in installation without welding or fabrication.\u003c\/li\u003e \u003cli\u003e100% dyno tested and serialized for consistent performance.\u003c\/li\u003e \u003cli\u003eServiceable and rebuildable by QA1 authorized service centers.\u003c\/li\u003e \u003cli\u003eIdeal for street performance, autocross, pro-touring, and drag racing.\u003c\/li\u003e \u003cli\u003eBacked by QA1 Limited Lifetime Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003ePosition: Front\u003c\/li\u003e \u003cli\u003eShock Adjustability: Single Adjustable\u003c\/li\u003e \u003cli\u003eShock Type: Twin-Tube\u003c\/li\u003e \u003cli\u003eSpring Length: 10 in.\u003c\/li\u003e \u003cli\u003eSpring Rate: 550 lb\/in\u003c\/li\u003e \u003cli\u003eRecommended Front-End Weight: 2,101-2,200 lb\u003c\/li\u003e \u003cli\u003eCompressed Length: 9.63 in.\u003c\/li\u003e \u003cli\u003eExtended Length: 14.50 in.\u003c\/li\u003e \u003cli\u003eShock Stroke: 5.00 in.\u003c\/li\u003e \u003cli\u003eThreaded Ride Height Adjustment Range: 3.00 in.\u003c\/li\u003e \u003cli\u003eUpper Mount: Stud\u003c\/li\u003e \u003cli\u003eLower Mount: T-Bar\u003c\/li\u003e \u003cli\u003eShock Body Material: Billet Aluminum\u003c\/li\u003e \u003cli\u003eSpring Finish: Silver Powder Coated\u003c\/li\u003e \u003cli\u003eBushing Material: Polyurethane\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e2x QA1 Single Adjustable Front Coil-Over Shocks\u003c\/li\u003e \u003cli\u003e2x 10-inch 550 lb\/in Coil Springs\u003c\/li\u003e \u003cli\u003e2x Threaded Spring Seats and Lock Rings\u003c\/li\u003e \u003cli\u003e1x Mounting Hardware Kit\u003c\/li\u003e \u003cli\u003e1x Installation Instructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe QA1 GS507-10550C Front Pro Coil System is a premium bolt-in coil-over conversion designed for compatible GM full-size B-Body vehicles. Featuring lightweight billet aluminum single-adjustable shocks and high-travel 10-inch, 550 lb\/in coil springs, it provides improved handling, ride quality, and ride-height adjustability while maintaining excellent street manners.\u003c\/p\u003e\u003cp\u003eThe single-adjustable damping system offers 18 valving positions that simultaneously adjust compression and rebound, making suspension tuning simple and effective. With a fully threaded shock body, durable powder-coated springs, and rebuildable construction, the GS507-10550C is an ideal upgrade for pro-touring, street performance, autocross, and drag racing applications where improved control and precise suspension tuning are desired.\u003c\/p\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":53499715584319,"sku":"QAPGS507-10550C","price":749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/5ca8728ba07ffc3666bc60fb881e98dd_70561df6-6c6f-46b6-9956-6969969bd5bd.jpg?v=1780440351","url":"https:\/\/wcaperformance.com\/products\/qa1-gm-pro-front-coil-over-system-single-adj-10in-x-550lbs-in-flat-large-aluminum-1","provider":"WCA Performance","version":"1.0","type":"link"}