{"product_id":"qa1-gm-pro-front-coil-over-system-double-adj-10in-x-550lbs-in-flat-large-aluminum","title":"QA1 GM Pro Front Coil-Over System - Double Adj. - 10in x 550lbs\/in - Flat Large - Aluminum","description":"Front Pro Coil double adjustable stock mount shock kit. Compressed length of 9.63\" and extended length of 14.5\". Includes 10\" spring with rating of 550.\nThese QA1 GM Pro Coil Systems are available for 1971-1996 Impalas and Full Size GM vehicles, including Full Size Chevy, Buick, Oldsmobile and Pontiac models, and even Ford full size vehicles and Galaxies. They are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Specially designed for QA1's Pro Coil Systems, the lightweight high travel springs have fewer coils and a smaller wire diameter, resulting in increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance. Multiple spring rate options are also available and have been successfully tested in various applications, from casual street driving to hard core race applications. Adjustable Pro Coil System Features: Available in independent compression and rebound double adjustable, simultaneous compression and rebound adjustable, or drag \"R\" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs, .\n\u003cul\u003e\n  \u003cli\u003eAchieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving.\u003c\/li\u003e\n  \u003cli\u003eEasy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.\u003c\/li\u003e\n  \u003cli\u003eUp to 2 of ride height adjustment allows you to dial in the perfect stance.\u003c\/li\u003e\n  \u003cli\u003eLimited Lifetime Warranty for peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1958 Chevrolet Bel Air Base\u003cbr\u003e\n1958 Chevrolet Biscayne Base\u003cbr\u003e\n1958 Chevrolet Del Ray Base\u003cbr\u003e\n1959 Chevrolet Bel Air Base\u003cbr\u003e\n1959 Chevrolet Biscayne Base\u003cbr\u003e\n1960 Chevrolet Bel Air Base\u003cbr\u003e\n1960 Chevrolet Biscayne Base\u003cbr\u003e\n1960 Chevrolet Biscayne Fleetmaster\u003cbr\u003e\n1960 Edsel Ranger Base\u003cbr\u003e\n1960 Ford Galaxie Base\u003cbr\u003e\n1960 Ford Galaxie Special\u003cbr\u003e\n1960 Mercury Country Cruiser Base\u003cbr\u003e\n1960 Mercury Monterey Base\u003cbr\u003e\n1961 Chevrolet Bel Air Base\u003cbr\u003e\n1961 Chevrolet Biscayne Base\u003cbr\u003e\n1961 Ford Galaxie Base\u003cbr\u003e\n1961 Ford Galaxie Club Victoria\u003cbr\u003e\n1961 Ford Galaxie Starliner\u003cbr\u003e\n1961 Ford Galaxie Sunliner\u003cbr\u003e\n1961 Ford Galaxie Town Victoria\u003cbr\u003e\n1961 Mercury Meteor 600\u003cbr\u003e\n1961 Mercury Meteor Base\u003cbr\u003e\n1961 Mercury Monterey Base\u003cbr\u003e\n1962 Chevrolet Bel Air Base\u003cbr\u003e\n1962 Chevrolet Biscayne Base\u003cbr\u003e\n1962 Ford Galaxie Base\u003cbr\u003e\n1962 Mercury Meteor Base\u003cbr\u003e\n1962 Mercury Meteor Custom\u003cbr\u003e\n1962 Mercury Meteor S-33\u003cbr\u003e\n1962 Mercury Monterey Base\u003cbr\u003e\n1962 Mercury Monterey Custom\u003cbr\u003e\n1962 Mercury Monterey Custom S-55\u003cbr\u003e\n1963 Chevrolet Bel Air Base\u003cbr\u003e\n1963 Chevrolet Biscayne Base\u003cbr\u003e\n1963 Ford Galaxie Base\u003cbr\u003e\n1963 Mercury Country Cruiser Base\u003cbr\u003e\n1963 Mercury Marauder Base\u003cbr\u003e\n1963 Mercury Meteor Base\u003cbr\u003e\n1963 Mercury Meteor Custom\u003cbr\u003e\n1963 Mercury Meteor S-33\u003cbr\u003e\n1963 Mercury Monterey Base\u003cbr\u003e\n1963 Mercury Monterey Custom\u003cbr\u003e\n1963 Mercury Monterey S-55\u003cbr\u003e\n1964 Chevrolet Bel Air Base\u003cbr\u003e\n1964 Chevrolet Biscayne Base\u003cbr\u003e\n1964 Ford Galaxie Base\u003cbr\u003e\n1964 Mercury Marauder Base\u003cbr\u003e\n1964 Mercury Monterey Base\u003cbr\u003e\n1965 Chevrolet Bel Air Base\u003cbr\u003e\n1965 Chevrolet Biscayne Base\u003cbr\u003e\n1966 Chevrolet Bel Air Base\u003cbr\u003e\n1966 Chevrolet Biscayne Base\u003cbr\u003e\n1966 Chevrolet Caprice Base\u003cbr\u003e\n1967 Chevrolet Bel Air Base\u003cbr\u003e\n1967 Chevrolet Biscayne Base\u003cbr\u003e\n1967 Chevrolet Caprice Base\u003cbr\u003e\n1968 Chevrolet Bel Air Base\u003cbr\u003e\n1968 Chevrolet Biscayne Base\u003cbr\u003e\n1968 Chevrolet Caprice Base\u003cbr\u003e\n1969 Chevrolet Bel Air Base\u003cbr\u003e\n1969 Chevrolet Biscayne Base\u003cbr\u003e\n1969 Chevrolet Caprice Base\u003cbr\u003e\n1970 Chevrolet Bel Air Base\u003cbr\u003e\n1970 Chevrolet Biscayne Base\u003cbr\u003e\n1970 Chevrolet Caprice Base\u003cbr\u003e\n1971 Chevrolet Bel Air Base\u003cbr\u003e\n1971 Chevrolet Biscayne Base\u003cbr\u003e\n1971 Chevrolet Caprice Base\u003cbr\u003e\n1971 Chevrolet Impala Base\u003cbr\u003e\n1972 Chevrolet Bel Air Base\u003cbr\u003e\n1972 Chevrolet Biscayne Base\u003cbr\u003e\n1972 Chevrolet Caprice Base\u003cbr\u003e\n1972 Chevrolet Impala Base\u003cbr\u003e\n1973 Chevrolet Bel Air Base\u003cbr\u003e\n1973 Chevrolet Caprice Classic\u003cbr\u003e\n1973 Chevrolet Caprice Estate\u003cbr\u003e\n1973 Chevrolet Impala Base\u003cbr\u003e\n1974 Chevrolet Bel Air Base\u003cbr\u003e\n1974 Chevrolet Caprice Classic\u003cbr\u003e\n1974 Chevrolet Caprice Estate\u003cbr\u003e\n1974 Chevrolet Impala Base\u003cbr\u003e\n1975 Chevrolet Bel Air Base\u003cbr\u003e\n1975 Chevrolet Caprice Classic\u003cbr\u003e\n1975 Chevrolet Caprice Classic Sport\u003cbr\u003e\n1975 Chevrolet Caprice Estate Wagon\u003cbr\u003e\n1975 Chevrolet Impala Base\u003cbr\u003e\n1975 Chevrolet Impala Custom\u003cbr\u003e\n1975 Chevrolet Impala Sport\u003cbr\u003e\n1976 Chevrolet Caprice Classic\u003cbr\u003e\n1976 Chevrolet Caprice Classic Estate\u003cbr\u003e\n1976 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1976 Chevrolet Caprice Classic Sport\u003cbr\u003e\n1976 Chevrolet Impala Base\u003cbr\u003e\n1976 Chevrolet Impala Custom\u003cbr\u003e\n1976 Chevrolet Impala Custom Landau\u003cbr\u003e\n1976 Chevrolet Impala S\u003cbr\u003e\n1976 Chevrolet Impala Sport\u003cbr\u003e\n1977 Chevrolet Caprice Classic\u003cbr\u003e\n1977 Chevrolet Caprice Classic Estate\u003cbr\u003e\n1977 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1977 Chevrolet Impala Base\u003cbr\u003e\n1977 Chevrolet Impala Custom\u003cbr\u003e\n1977 Chevrolet Impala Landau\u003cbr\u003e\n1978 Chevrolet Caprice Classic\u003cbr\u003e\n1978 Chevrolet Caprice Classic Estate\u003cbr\u003e\n1978 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1978 Chevrolet Impala Base\u003cbr\u003e\n1978 Chevrolet Impala Landau\u003cbr\u003e\n1979 Chevrolet Caprice Classic\u003cbr\u003e\n1979 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1979 Chevrolet Caprice Classic Sport\u003cbr\u003e\n1979 Chevrolet Impala Base\u003cbr\u003e\n1979 Chevrolet Impala Landau\u003cbr\u003e\n1979 Chevrolet Impala Sport\u003cbr\u003e\n1980 Chevrolet Caprice Classic\u003cbr\u003e\n1980 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1980 Chevrolet Caprice Classic Sport\u003cbr\u003e\n1980 Chevrolet Impala Base\u003cbr\u003e\n1980 Chevrolet Impala Sport\u003cbr\u003e\n1981 Chevrolet Caprice Classic\u003cbr\u003e\n1981 Chevrolet Caprice Classic Estate\u003cbr\u003e\n1981 Chevrolet Caprice Classic Landau\u003cbr\u003e\n1981 Chevrolet Impala Base\u003cbr\u003e\n1981 Chevrolet Impala Estate\u003cbr\u003e\n1982 Chevrolet Caprice Classic\u003cbr\u003e\n1982 Chevrolet Caprice Classic Estate\u003cbr\u003e\n1982 Chevrolet Impala Base\u003cbr\u003e\n1982 Chevrolet Impala Estate\u003cbr\u003e\n1983 Chevrolet Caprice Classic\u003cbr\u003e\n1983 Chevrolet Impala Base\u003cbr\u003e\n1984 Chevrolet Caprice Classic\u003cbr\u003e\n1984 Chevrolet Impala Base\u003cbr\u003e\n1985 Chevrolet Caprice Classic\u003cbr\u003e\n1985 Chevrolet Impala Base\u003cbr\u003e\n1986 Chevrolet Caprice Base\u003cbr\u003e\n1986 Chevrolet Caprice Classic\u003cbr\u003e\n1986 Chevrolet Caprice Classic Brougham\u003cbr\u003e\n1987 Chevrolet Caprice Base\u003cbr\u003e\n1987 Chevrolet Caprice Classic\u003cbr\u003e\n1987 Chevrolet Caprice Classic Brougham\u003cbr\u003e\n1987 Chevrolet Caprice Classic LS Brougham\u003cbr\u003e\n1988 Chevrolet Caprice Base\u003cbr\u003e\n1988 Chevrolet Caprice Classic\u003cbr\u003e\n1988 Chevrolet Caprice Classic Brougham\u003cbr\u003e\n1988 Chevrolet Caprice Classic LS Brougham\u003cbr\u003e\n1989 Chevrolet Caprice Base\u003cbr\u003e\n1989 Chevrolet Caprice Classic\u003cbr\u003e\n1989 Chevrolet Caprice Classic Brougham\u003cbr\u003e\n1989 Chevrolet Caprice Classic LS Brougham\u003cbr\u003e\n1990 Chevrolet Caprice Base\u003cbr\u003e\n1990 Chevrolet Caprice Classic\u003cbr\u003e\n1990 Chevrolet Caprice Classic Brougham\u003cbr\u003e\n1990 Chevrolet Caprice Classic LS 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