QA1 GM Pro Front Coil-Over System – Double Adj. – 9in x 550lbs/in – Pigtail Large – Aluminum

Front Pro Coil double adjustable stock mount shock kit. Compressed length of 9.63″ and extended length of 14.5″. Includes 9″ spring with rating of 550.
QA1’s GM Pro Coil Systems are available for 1963-1982 Corvettes and for 1958-1970 Full Size Chevrolet vehicles, including Impalas, Bel Airs and Caprices. They are the perfect 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 American-made 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, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs.

• Achieve the ultimate balance of ride quality and performance handling with independent tuning of rebound and compression valving.
• Easy bolt-in installation that works with your factory or upgraded QA1 tubular control arms.
• Up to 2 of ride height adjustment allows you to dial in the perfect stance.
• Limited Lifetime Warranty for peace of mind.
• Proudly made in the USA

Fits
1958 Chevrolet Bel Air Base
1958 Chevrolet Biscayne Base
1958 Chevrolet Del Ray Base
1959 Chevrolet Bel Air Base
1959 Chevrolet Biscayne Base
1960 Chevrolet Bel Air Base
1960 Chevrolet Biscayne Base
1960 Chevrolet Biscayne Fleetmaster
1961 Chevrolet Bel Air Base
1961 Chevrolet Biscayne Base
1962 Chevrolet Bel Air Base
1962 Chevrolet Biscayne Base
1963 Chevrolet Bel Air Base
1963 Chevrolet Biscayne Base
1963 Chevrolet Corvette Base
1964 Chevrolet Bel Air Base
1964 Chevrolet Biscayne Base
1964 Chevrolet Corvette Base
1965 Chevrolet Bel Air Base
1965 Chevrolet Biscayne Base
1965 Chevrolet Corvette Base
1966 Chevrolet Bel Air Base
1966 Chevrolet Biscayne Base
1966 Chevrolet Caprice Base
1966 Chevrolet Corvette Base
1967 Chevrolet Bel Air Base
1967 Chevrolet Biscayne Base
1967 Chevrolet Caprice Base
1967 Chevrolet Corvette Base
1968 Chevrolet Bel Air Base
1968 Chevrolet Biscayne Base
1968 Chevrolet Caprice Base
1968 Chevrolet Corvette Base
1969 Chevrolet Bel Air Base
1969 Chevrolet Biscayne Base
1969 Chevrolet Caprice Base
1969 Chevrolet Corvette Base
1970 Chevrolet Bel Air Base
1970 Chevrolet Biscayne Base
1970 Chevrolet Caprice Base
1970 Chevrolet Corvette Base
1971 Chevrolet Bel Air Base
1971 Chevrolet Biscayne Base
1971 Chevrolet Caprice Base
1971 Chevrolet Corvette Base
1971 Chevrolet Impala Base
1972 Chevrolet Bel Air Base
1972 Chevrolet Biscayne Base
1972 Chevrolet Caprice Base
1972 Chevrolet Corvette Base
1972 Chevrolet Impala Base
1973 Chevrolet Bel Air Base
1973 Chevrolet Caprice Classic
1973 Chevrolet Caprice Estate
1973 Chevrolet Corvette Base
1973 Chevrolet Impala Base
1974 Chevrolet Bel Air Base
1974 Chevrolet Caprice Classic
1974 Chevrolet Caprice Estate
1974 Chevrolet Corvette Base
1974 Chevrolet Impala Base
1975 Chevrolet Bel Air Base
1975 Chevrolet Caprice Classic
1975 Chevrolet Caprice Classic Sport
1975 Chevrolet Caprice Estate Wagon
1975 Chevrolet Corvette Stingray
1975 Chevrolet Impala Base
1975 Chevrolet Impala Custom
1975 Chevrolet Impala Sport
1976 Chevrolet Caprice Classic
1976 Chevrolet Caprice Classic Estate
1976 Chevrolet Caprice Classic Landau
1976 Chevrolet Caprice Classic Sport
1976 Chevrolet Corvette Stingray
1976 Chevrolet Impala Base
1976 Chevrolet Impala Custom
1976 Chevrolet Impala Custom Landau
1976 Chevrolet Impala S
1976 Chevrolet Impala Sport
1977 Chevrolet Caprice Classic
1977 Chevrolet Caprice Classic Estate
1977 Chevrolet Caprice Classic Landau
1977 Chevrolet Corvette Base
1977 Chevrolet Impala Base
1977 Chevrolet Impala Custom
1977 Chevrolet Impala Landau
1978 Chevrolet Caprice Classic
1978 Chevrolet Caprice Classic Estate
1978 Chevrolet Caprice Classic Landau
1978 Chevrolet Corvette Base
1978 Chevrolet Corvette Indianapolis 500 Pace Car
1978 Chevrolet Corvette Silver Anniversary Edition
1978 Chevrolet Impala Base
1978 Chevrolet Impala Landau
1979 Chevrolet Caprice Classic
1979 Chevrolet Caprice Classic Landau
1979 Chevrolet Caprice Classic Sport
1979 Chevrolet Corvette Base
1979 Chevrolet Impala Base
1979 Chevrolet Impala Landau
1979 Chevrolet Impala Sport
1980 Chevrolet Caprice Classic
1980 Chevrolet Caprice Classic Landau
1980 Chevrolet Caprice Classic Sport
1980 Chevrolet Corvette Base
1980 Chevrolet Impala Base
1980 Chevrolet Impala Sport
1981 Chevrolet Caprice Classic
1981 Chevrolet Caprice Classic Estate
1981 Chevrolet Caprice Classic Landau
1981 Chevrolet Corvette Base
1981 Chevrolet Impala Base
1981 Chevrolet Impala Estate
1982 Chevrolet Caprice Classic
1982 Chevrolet Caprice Classic Estate
1982 Chevrolet Corvette Base
1982 Chevrolet Corvette Collector’s Edition
1982 Chevrolet Impala Base
1982 Chevrolet Impala Estate
1983 Chevrolet Caprice Classic
1983 Chevrolet Impala Base
1984 Chevrolet Caprice Classic
1984 Chevrolet Impala Base
1985 Chevrolet Caprice Classic
1985 Chevrolet Impala Base
1986 Chevrolet Caprice Base
1986 Chevrolet Caprice Classic
1986 Chevrolet Caprice Classic Brougham
1987 Chevrolet Caprice Base
1987 Chevrolet Caprice Classic
1987 Chevrolet Caprice Classic Brougham
1987 Chevrolet Caprice Classic LS Brougham
1988 Chevrolet Caprice Base
1988 Chevrolet Caprice Classic
1988 Chevrolet Caprice Classic Brougham
1988 Chevrolet Caprice Classic LS Brougham
1989 Chevrolet Caprice Base
1989 Chevrolet Caprice Classic
1989 Chevrolet Caprice Classic Brougham
1989 Chevrolet Caprice Classic LS Brougham
1990 Chevrolet Caprice Base
1990 Chevrolet Caprice Classic
1990 Chevrolet Caprice Classic Brougham
1990 Chevrolet Caprice Classic LS Brougham
1991 Chevrolet Caprice Base
1991 Chevrolet Caprice Classic
1991 Chevrolet Caprice Classic LTZ
1994 Chevrolet Impala SS
1995 Chevrolet Impala SS
1996 Chevrolet Impala SS

Weight	20.8 lbs
Dimensions	21.2 × 10.2 × 8.3 in
air_freight_prohibited	false
not_carb_approved	false
carb_acknowledgement_required	false
ltl_freight_required	false
prop_65	Y
part_type	automotive
epa	N/A
regular_stock	t
units_per_sku	1
upc	806990139887
brand	QA1
part_number	GD507-09550D

Brand