{"product_id":"qa1-double-adjustable-gm-pro-front-coil-over-system-10in-650-lb-in-flat-large-billet-aluminum-qapgd507-10650c","title":"QA1 GM Pro Front Coil-Over System Double Adjustable | 1958-1996 Full-Size Chevy, Ford \u0026 Mercury | 10in x 650 lb\/in Flat Large Billet Aluminum | GD507-10650C","description":"\u003cp\u003eThe QA1 GM Pro Front Coil-Over System brings fully adjustable ride height and valving control to full-size and Corvette platforms. A lightweight billet aluminum coil-over shock with a fully threaded body allows the ride height to be set for the desired stance or to fine-tune weight balance for better handling. The American-made high-travel spring runs fewer coils and a smaller wire diameter for increased travel, lower unsprung weight and quicker response. This double adjustable system is 100 percent dyno tested and serialized, rebuildable by QA1 authorized service centers, installs with a straightforward bolt-in fitment, and is made in the USA. Sold in pairs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: QA1 Pro front coil-over system (sold in pairs)\u003c\/li\u003e\n\u003cli\u003eAdjustability: Double Adjustable (18-way independent compression and rebound)\u003c\/li\u003e\n\u003cli\u003eShock body: Billet Aluminum, fully threaded\u003c\/li\u003e\n\u003cli\u003eSpring: 10in length, 650 lb\/in rate, high-travel\u003c\/li\u003e\n\u003cli\u003eSpring\/mount style: Flat Large\u003c\/li\u003e\n\u003cli\u003eInstallation: bolt-in\u003c\/li\u003e\n\u003cli\u003eWarranty: Limited Lifetime\u003c\/li\u003e\n\u003cli\u003eMade in: USA\u003c\/li\u003e\n\u003cli\u003ePart number: GD507-10650C\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\u003eWhat does QA1 part number GD507-10650C fit?\u003c\/h5\u003e\u003cp\u003eQA1 GD507-10650C is listed to fit 1958-1996 Full-Size Chevy, Ford \u0026amp; Mercury. The Vehicle Applications list above shows the individual years, makes and models from the QA1 fitment data for this part.\u003c\/p\u003e\u003ch5\u003eIs this coil-over single or double adjustable?\u003c\/h5\u003e\u003cp\u003eThis is the double adjustable version, which provides independent compression and rebound valving adjustment so ride and handling can be tuned separately.\u003c\/p\u003e\u003ch5\u003eWhat spring is included?\u003c\/h5\u003e\u003cp\u003eIt is supplied with a QA1 high-travel spring measuring 10in in length with a 650 lb\/in spring rate.\u003c\/p\u003e\u003ch5\u003eCan ride height be adjusted?\u003c\/h5\u003e\u003cp\u003eYes. The fully threaded shock body allows the ride height to be adjusted to set the stance or fine-tune weight balance.\u003c\/p\u003e\u003ch5\u003eIs professional installation required?\u003c\/h5\u003e\u003cp\u003eThe system is designed as a bolt-in installation using standard hand tools, so no welding or fabrication is required for a typical fitment.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does QA1 part number GD507-10650C fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"QA1 GD507-10650C is listed to fit 1958-1996 Full-Size Chevy, Ford \u0026 Mercury. The Vehicle Applications list above shows the individual years, makes and models from the QA1 fitment data for this part.\"}}, {\"@type\": \"Question\", \"name\": \"Is this coil-over single or double adjustable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is the double adjustable version, which provides independent compression and rebound valving adjustment so ride and handling can be tuned separately.\"}}, {\"@type\": \"Question\", \"name\": \"What spring is included?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is supplied with a QA1 high-travel spring measuring 10in in length with a 650 lb\/in spring rate.\"}}, {\"@type\": \"Question\", \"name\": \"Can ride height be adjusted?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The fully threaded shock body allows the ride height to be adjusted to set the stance or fine-tune weight balance.\"}}, {\"@type\": \"Question\", \"name\": \"Is professional installation required?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The system is designed as a bolt-in installation using standard hand tools, so no welding or fabrication is required for a typical fitment.\"}}]}\u003c\/script\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":43540821966896,"sku":"QAPGD507-10650C","price":964.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/33808c3c350cba7f8e291778f1f332afL_041502fe-1c03-4892-af47-455bf2391bcd.jpg?v=1787918071","url":"https:\/\/berryperformancesales.com\/products\/qa1-double-adjustable-gm-pro-front-coil-over-system-10in-650-lb-in-flat-large-billet-aluminum-qapgd507-10650c","provider":"Berry Performance Sales","version":"1.0","type":"link"}