QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 550lbs/in - Flat Large - Aluminum

These 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 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, . Front Pro Coil single adjustable stock mount shock kit. Compressed length of 9.63" and extended length of 14.5". Includes 10" spring with rating of 550.

• Achieve the ultimate balance of ride quality and performance with simultanious adjustment 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 the front suspension of your 1971–1996 Chevrolet Impala and select full-size GM applications with the QA1 qapGS507-10550C GM Pro Front Coil-Over System. This single-adjustable kit provides simultaneous compression and rebound valving control, allowing you to fine-tune ride quality and handling for street performance, autocross, road racing, drag racing, or street rod use. The system is also compatible with factory or upgraded QA1 tubular control arms for straightforward bolt-in installation.
The fully threaded shock body provides ride height adjustment for stance tuning and suspension setup. With up to 2 inches of adjustment, you can help optimize vehicle balance and handling without replacing components. The lightweight billet aluminum coil-over shock is paired with a high-travel spring engineered with fewer coils and a smaller wire diameter. This design increases available suspension travel, reduces unsprung weight, and allows the spring to respond quickly to changing road and track conditions.
This QA1 Pro Coil System includes a 10-inch spring rated at 550 pounds per inch, with a compressed length of 9.63 inches and an extended length of 14.5 inches. The shock is serviceable and rebuildable through QA1 authorized service centers, and each unit is dyno tested and serialized for consistent performance. Sold as a pair, the system is proudly made in the USA and backed by a limited lifetime warranty. Verify vehicle application and control-arm compatibility before installation.

Features:

• Single-adjustable shock with simultaneous compression and rebound valving control

• Front coil-over system designed for select 1971–1996 Chevrolet Impala and full-size GM applications

• Includes a 10-inch high-travel spring with a 550 pounds-per-inch spring rate

• Fully threaded shock body allows up to 2 inches of ride height adjustment

• Lightweight billet aluminum coil-over shock construction reduces unsprung weight

• Easy bolt-in installation with factory or upgraded QA1 tubular control arms

• Serviceable and rebuildable through QA1 authorized service centers

• 100% dyno tested and serialized for consistent performance

• Sold as a pair

• Made in the USA

• 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 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
Edsel Ranger Base 1960
Ford Galaxie Base 1960
Ford Galaxie Base 1961
Ford Galaxie Base 1962
Ford Galaxie Base 1963
Ford Galaxie Base 1964
Ford Galaxie Club Victoria 1961
Ford Galaxie Special 1960
Ford Galaxie Starliner 1961
Ford Galaxie Sunliner 1961
Ford Galaxie Town Victoria 1961
Mercury Country Cruiser Base 1960
Mercury Country Cruiser Base 1963
Mercury Marauder Base 1963
Mercury Marauder Base 1964
Mercury Meteor 600 1961
Mercury Meteor Base 1961
Mercury Meteor Base 1962
Mercury Meteor Base 1963
Mercury Meteor Custom 1962
Mercury Meteor Custom 1963
Mercury Meteor S-33 1962
Mercury Meteor S-33 1963
Mercury Monterey Base 1960
Mercury Monterey Base 1961
Mercury Monterey Base 1962
Mercury Monterey Base 1963
Mercury Monterey Base 1964
Mercury Monterey Custom 1962
Mercury Monterey Custom 1963
Mercury Monterey Custom S-55 1962
Mercury Monterey S-55 1963