{"product_id":"qa1-gm-front-pro-coil-system-single-adjustable-bjgm-gs507-10550c","title":"QA1 GM Front Pro Coil System Single Adjustable | 1958-1991 Full Size GM \u0026 Ford | GS507-10550C","description":"\u003cp\u003eQA1's GM Front Pro Coil System delivers fully adjustable ride height and valving control for full size GM and Ford applications. A fully threaded shock body sets the ride height for the desired stance and helps fine tune weight balance, while the lightweight billet aluminum coil-over shocks offer single adjustable valving. The specially designed high travel springs use fewer coils and a smaller wire diameter for added travel, reduced unsprung weight and faster response. Each system installs with basic hand tools, is 100 percent dyno tested and serialized, and can be serviced and rebuilt by QA1 authorized service centers. Made in the USA and sold in pairs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: GM front Pro Coil coil-over system\u003c\/li\u003e\n\u003cli\u003eAdjustment: single adjustable\u003c\/li\u003e\n\u003cli\u003eShock material: lightweight billet aluminum\u003c\/li\u003e\n\u003cli\u003eSpring: 10 in, 550 lb rate\u003c\/li\u003e\n\u003cli\u003eSpring end: tapered flat, large\u003c\/li\u003e\n\u003cli\u003eCompressed length: 9.63 in\u003c\/li\u003e\n\u003cli\u003eExtended length: 14.5 in\u003c\/li\u003e\n\u003cli\u003eMounting: stock mount, bolt-in\u003c\/li\u003e\n\u003cli\u003eSold in pairs with mounting hardware\u003c\/li\u003e\n\u003cli\u003eMade in the USA\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 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\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\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat vehicles does this QA1 Pro Coil system fit?\u003c\/h5\u003e\u003cp\u003eIt is designed for 1958-1991 full size GM and Ford applications listed in the vehicle applications section of this listing.\u003c\/p\u003e\u003ch5\u003eIs this coil-over system adjustable?\u003c\/h5\u003e\u003cp\u003eYes. It uses single adjustable valving and a fully threaded shock body for ride height adjustment.\u003c\/p\u003e\u003ch5\u003eWhat spring is included?\u003c\/h5\u003e\u003cp\u003eThis kit includes a 10 in, 550 lb rate spring with a large tapered flat end.\u003c\/p\u003e\u003ch5\u003eIs it sold individually or in pairs?\u003c\/h5\u003e\u003cp\u003eQA1 Pro Coil systems are sold in pairs and include all mounting hardware.\u003c\/p\u003e\u003ch5\u003eWhere is it made?\u003c\/h5\u003e\u003cp\u003eQA1 Pro Coil systems are made in the USA, 100 percent dyno tested and serialized.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles does this QA1 Pro Coil system fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is designed for 1958-1991 full size GM and Ford applications listed in the vehicle applications section of this listing.\"}}, {\"@type\": \"Question\", \"name\": \"Is this coil-over system adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. It uses single adjustable valving and a fully threaded shock body for ride height adjustment.\"}}, {\"@type\": \"Question\", \"name\": \"What spring is included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This kit includes a 10 in, 550 lb rate spring with a large tapered flat end.\"}}, {\"@type\": \"Question\", \"name\": \"Is it sold individually or in pairs?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 Pro Coil systems are sold in pairs and include all mounting hardware.\"}}, {\"@type\": \"Question\", \"name\": \"Where is it made?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 Pro Coil systems are made in the USA, 100 percent dyno tested and serialized.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":42664490565680,"sku":"BJGM_GS507-10550C","price":789.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/a96a9550cdb04_ca30887a-9dc5-4ebe-b954-c4bb31e1eb0b.jpg?v=1766456082","url":"https:\/\/berryperformancesales.com\/products\/qa1-gm-front-pro-coil-system-single-adjustable-bjgm-gs507-10550c","provider":"Berry Performance Sales","version":"1.0","type":"link"}