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

Upgrade your classic Chevrolet’s front suspension with the QA1 GM Pro Front Coil-Over System, Part QAPGD507-09550D. This double-adjustable stock-mount shock kit provides independent compression and rebound tuning, allowing you to balance ride comfort, handling response, and suspension control for street performance, autocross, road racing, drag racing, and street rod applications. The system includes a 9-inch, 550 lb/in high-travel spring and is designed for use with QA1 Pro Coil Systems on select Chevrolet applications, including 1963-1982 Corvettes and 1958-1970 full-size Chevrolet models such as the Impala, Bel Air, and Caprice.
The fully threaded shock body provides ride-height adjustment for dialing in the desired stance or fine-tuning vehicle weight balance. With a compressed length of 9.63 inches and an extended length of 14.5 inches, the shock offers useful suspension travel for improved control. Lightweight billet aluminum coil-over shocks and specially designed American-made springs help reduce unsprung weight and respond quickly to changing road and track conditions. The large-pigtail spring configuration is engineered specifically for compatible QA1 Pro Coil applications.
Installation is designed to be straightforward with a bolt-in design that works with factory or upgraded QA1 tubular control arms. Each QA1 Pro Coil System is dyno tested and serialized, and the serviceable, rebuildable construction is supported by QA1 authorized service centers. This kit is sold in pairs and proudly made in the USA. Verify vehicle application, control-arm compatibility, and suspension requirements before installation. Fits select Chevrolet Impala applications, including 1977-1985 and 1994-1996 models, as listed by the manufacturer.

Features:

• Double-adjustable shock design provides independent compression and rebound tuning

• Includes a 9-inch, 550 lb/in high-travel coil spring

• Fully threaded shock body allows adjustable ride height and stance tuning

• Stock-mount design supports easy bolt-in installation

• Compatible with factory or upgraded QA1 tubular control arms

• Lightweight billet aluminum coil-over shocks reduce unsprung weight

• Serviceable and rebuildable through QA1 authorized service centers

• 100% dyno tested and serialized for quality control

• Made in the USA

• Sold in pairs

• Covered by a limited lifetime warranty

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