{"product_id":"qa1-full-size-pro-front-coil-over-system-single-adjustable-10in-550-lb-in-flat-large-aluminum-qapgs507-10550c","title":"QA1 Full-Size Pro Front Coil-Over System Single Adjustable 10in 550 lb\/in Flat Large Aluminum | 1958-1996 Full-Size GM \u0026 Ford | GS507-10550C","description":"\u003cp\u003eThe QA1 GM Pro Coil System is a front coil-over conversion for full-size applications that calls for fully adjustable ride height and valving control. The fully threaded billet aluminum shock body sets ride height for the desired stance and helps fine-tune weight balance, while the single adjustable valving tunes the ride. QA1's American-made lightweight high travel springs use fewer coils and a smaller wire diameter for increased travel, reduced unsprung weight and faster response. It works with factory or upgraded QA1 tubular control arms, bolts in and is made in the USA.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: front coil-over system (Pro Coil)\u003c\/li\u003e\n\u003cli\u003eAdjustability: single adjustable valving\u003c\/li\u003e\n\u003cli\u003eSpring: 10in high travel spring, 550 lb\/in rate\u003c\/li\u003e\n\u003cli\u003eSpring seat: flat, large\u003c\/li\u003e\n\u003cli\u003eShock body: lightweight billet aluminum, fully threaded\u003c\/li\u003e\n\u003cli\u003eRide height adjustable\u003c\/li\u003e\n\u003cli\u003eWorks with factory or QA1 tubular control arms\u003c\/li\u003e\n\u003cli\u003e100% dyno tested and serialized\u003c\/li\u003e\n\u003cli\u003eBolt-in installation\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eSold in pairs\u003c\/li\u003e\n\u003cli\u003ePart number: GS507-10550C\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1958 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1960 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1961 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1962 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1963 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1964 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1965 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1966 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1967 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1968 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1969 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1970 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Bel Air\u003c\/li\u003e\n\u003cli\u003e1958 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1959 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1960 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1961 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1962 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1963 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1964 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1965 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1966 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1967 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1968 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1969 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1970 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Biscayne\u003c\/li\u003e\n\u003cli\u003e1966 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1967 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1968 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1969 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1970 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1989 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet Caprice\u003c\/li\u003e\n\u003cli\u003e1958 Chevrolet Del Ray\u003c\/li\u003e\n\u003cli\u003e1971 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1972 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1973 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1974 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1975 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1976 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1977 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1978 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1979 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1980 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1981 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1982 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003e1960 Edsel Ranger\u003c\/li\u003e\n\u003cli\u003e1960 Ford Galaxie\u003c\/li\u003e\n\u003cli\u003e1961 Ford Galaxie\u003c\/li\u003e\n\u003cli\u003e1962 Ford Galaxie\u003c\/li\u003e\n\u003cli\u003e1963 Ford Galaxie\u003c\/li\u003e\n\u003cli\u003e1964 Ford Galaxie\u003c\/li\u003e\n\u003cli\u003e1960 Mercury Country Cruiser\u003c\/li\u003e\n\u003cli\u003e1963 Mercury Country Cruiser\u003c\/li\u003e\n\u003cli\u003e1963 Mercury Marauder\u003c\/li\u003e\n\u003cli\u003e1964 Mercury Marauder\u003c\/li\u003e\n\u003cli\u003e1961 Mercury Meteor\u003c\/li\u003e\n\u003cli\u003e1962 Mercury Meteor\u003c\/li\u003e\n\u003cli\u003e1963 Mercury Meteor\u003c\/li\u003e\n\u003cli\u003e1960 Mercury Monterey\u003c\/li\u003e\n\u003cli\u003e1961 Mercury Monterey\u003c\/li\u003e\n\u003cli\u003e1962 Mercury Monterey\u003c\/li\u003e\n\u003cli\u003e1963 Mercury Monterey\u003c\/li\u003e\n\u003cli\u003e1964 Mercury Monterey\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/9b6fbad111a2499d056e81f784a08e9e.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eIs this coil-over system adjustable?\u003c\/h5\u003e\u003cp\u003eYes. It uses QA1 single adjustable coil-over shocks with ride height adjustment through the fully threaded aluminum shock body, plus valving adjustment to tune the ride for street, autocross, road racing or drag use.\u003c\/p\u003e\u003ch5\u003eWhat spring is included?\u003c\/h5\u003e\u003cp\u003eThe system is built around a 10in high travel spring with a 550 lb\/in rate. The lightweight high travel spring design uses fewer coils and a smaller wire diameter for increased travel and reduced unsprung weight.\u003c\/p\u003e\u003ch5\u003eIs it sold as a pair?\u003c\/h5\u003e\u003cp\u003eYes. The QA1 Pro Coil front system is sold in pairs and installs as a bolt-in upgrade.\u003c\/p\u003e\u003ch5\u003eWhere is it made?\u003c\/h5\u003e\u003cp\u003eQA1 coil-over shocks are made in the USA, and every shock is 100% dyno tested and serialized.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this coil-over system adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. It uses QA1 single adjustable coil-over shocks with ride height adjustment through the fully threaded aluminum shock body, plus valving adjustment to tune the ride for street, autocross, road racing or drag use.\"}}, {\"@type\": \"Question\", \"name\": \"What spring is included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The system is built around a 10in high travel spring with a 550 lb\/in rate. The lightweight high travel spring design uses fewer coils and a smaller wire diameter for increased travel and reduced unsprung weight.\"}}, {\"@type\": \"Question\", \"name\": \"Is it sold as a pair?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The QA1 Pro Coil front system is sold in pairs and installs as a bolt-in upgrade.\"}}, {\"@type\": \"Question\", \"name\": \"Where is it made?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 coil-over shocks are made in the USA, and every shock is 100% dyno tested and serialized.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":42715698495536,"sku":"QAPGS507-10550C","price":789.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/5ca8728ba07ffc3666bc60fb881e98dd_9ceedf89-cc7f-4a8f-badb-288fce6c7af7.jpg?v=1768858839","url":"https:\/\/berryperformancesales.com\/products\/qa1-full-size-pro-front-coil-over-system-single-adjustable-10in-550-lb-in-flat-large-aluminum-qapgs507-10550c","provider":"Berry Performance Sales","version":"1.0","type":"link"}