QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 400lbs/in - Flat Large - Aluminum

Front Pro Coil single adjustable stock mount shock kit. Compressed length of 10.13" and extended length of 17". Includes 10" spring with rating of 400 and has a large tapered flat end. These QA1 GM Pro Coil Systems 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, Non-Adjustable Pro Coil System Features: Steel, Stock Appearing Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs

• QA1 uniquely engineered to enhance the performance of your vehicle
• Adjustable shock valving options for all driving styles
• Ride height adjustability
• Best-in-class warranty
• Easy bolt-in install
• Made in the USA

The QA1 qapGS501-10400C GM Pro Front Coil-Over System is designed for drivers who want adjustable ride height and shock valving control in a performance-oriented suspension package. This single-adjustable, stock-mount system includes a 10-inch, 400 lb/in spring with a large tapered flat end and is engineered for a proper fit on select 1977–1981 Pontiac Firebird applications. The shock features a compressed length of 10.13 inches and an extended length of 17 inches, providing useful suspension travel for street performance, autocross, road racing, drag racing, and street rod applications.
The fully threaded shock body allows precise ride-height adjustment for stance, corner-weight tuning, and improved handling balance. QA1’s high-travel springs use fewer coils and a smaller wire diameter to increase the space between coils, helping provide greater available travel while reducing unsprung weight. The adjustable valving lets you tailor the suspension response to match your driving style, spring rate, tires, and vehicle setup. This design is intended to help improve suspension control without requiring a complicated installation.
The QA1 Pro Coil system is engineered for easy bolt-in installation and is made in the USA. QA1 shocks are fully dyno tested and built to be serviceable and rebuildable through authorized QA1 service centers, supporting long-term performance and maintenance. The lightweight aluminum coil-over shock design and adjustable ride height make this system a practical upgrade for performance-focused builds seeking more control than a conventional fixed suspension setup. This product is sold as a pair and is backed by QA1’s best-in-class warranty. Professional installation and alignment are recommended after installation and ride-height changes.

Features:

• Brand: QA1

• Part Number: qapGS501-10400C

• Application: Front GM Pro Coil-Over system for select 1977–1981 Pontiac Firebird models

• Adjustment: Single-adjustable shock valving

• Spring: 10-inch spring with a 400 lb/in rate and large tapered flat end

• Shock Travel: 10.13-inch compressed length and 17-inch extended length

• Ride Height: Fully threaded shock body for adjustable ride height and corner-weight tuning

• Installation: Easy bolt-in stock-mount design

• Construction: Lightweight aluminum coil-over shocks with high-travel springs

• Performance: Designed for street performance, drag racing, autocross, road racing, and street rod applications

• Serviceability: Dyno tested, serviceable, and rebuildable through authorized QA1 service centers

• Origin: Made in the USA

• Quantity: Sold as a pair

Fitment:
Chevrolet Camaro Base 1970
Chevrolet Camaro Base 1971
Chevrolet Camaro Base 1972
Chevrolet Camaro Base 1973
Chevrolet Camaro Base 1974
Chevrolet Camaro Base 1975
Chevrolet Camaro Base 1976
Chevrolet Camaro Base 1977
Chevrolet Camaro Base 1978
Chevrolet Camaro Base 1979
Chevrolet Camaro Base 1980
Chevrolet Camaro Berlinetta 1979
Chevrolet Camaro Berlinetta 1980
Chevrolet Camaro Berlinetta 1981
Chevrolet Camaro LT 1973
Chevrolet Camaro LT 1974
Chevrolet Camaro LT 1975
Chevrolet Camaro LT 1976
Chevrolet Camaro LT 1977
Chevrolet Camaro LT 1978
Chevrolet Camaro LT Rally Sport 1976
Chevrolet Camaro LT Rally Sport 1977
Chevrolet Camaro LT Rally Sport 1978
Chevrolet Camaro Rally Sport 1976
Chevrolet Camaro Rally Sport 1977
Chevrolet Camaro Rally Sport 1978
Chevrolet Camaro Rally Sport 1979
Chevrolet Camaro Rally Sport 1980
Chevrolet Camaro RS 1970
Chevrolet Camaro RS 1971
Chevrolet Camaro RS 1972
Chevrolet Camaro RS 1973
Chevrolet Camaro RS 1975
Chevrolet Camaro Sport 1981
Chevrolet Camaro SS 1970
Chevrolet Camaro SS 1971
Chevrolet Camaro SS 1972
Chevrolet Camaro Z28 1970
Chevrolet Camaro Z28 1971
Chevrolet Camaro Z28 1972
Chevrolet Camaro Z28 1973
Chevrolet Camaro Z28 1974
Chevrolet Camaro Z28 1977
Chevrolet Camaro Z28 1978
Chevrolet Camaro Z28 1979
Chevrolet Camaro Z28 1980
Chevrolet Camaro Z28 1981
Pontiac Firebird Base 1970
Pontiac Firebird Base 1971
Pontiac Firebird Base 1972
Pontiac Firebird Base 1973
Pontiac Firebird Base 1974
Pontiac Firebird Base 1975
Pontiac Firebird Base 1976
Pontiac Firebird Base 1977
Pontiac Firebird Base 1978
Pontiac Firebird Base 1979
Pontiac Firebird Base 1980
Pontiac Firebird Base 1981
Pontiac Firebird Esprit 1970
Pontiac Firebird Esprit 1971
Pontiac Firebird Esprit 1972
Pontiac Firebird Esprit 1973
Pontiac Firebird Esprit 1974
Pontiac Firebird Esprit 1975
Pontiac Firebird Esprit 1976
Pontiac Firebird Esprit 1977
Pontiac Firebird Esprit 1978
Pontiac Firebird Esprit 1979
Pontiac Firebird Esprit 1980
Pontiac Firebird Esprit 1981
Pontiac Firebird Formula 1970
Pontiac Firebird Formula 1971
Pontiac Firebird Formula 1972
Pontiac Firebird Formula 1973
Pontiac Firebird Formula 1974
Pontiac Firebird Formula 1975
Pontiac Firebird Formula 1976
Pontiac Firebird Formula 1977
Pontiac Firebird Formula 1978
Pontiac Firebird Formula 1979
Pontiac Firebird Formula 1980
Pontiac Firebird Formula 1981
Pontiac Firebird Trans Am 1970
Pontiac Firebird Trans Am 1971
Pontiac Firebird Trans Am 1972
Pontiac Firebird Trans Am 1973
Pontiac Firebird Trans Am 1974
Pontiac Firebird Trans Am 1975
Pontiac Firebird Trans Am 1976
Pontiac Firebird Trans Am 1977
Pontiac Firebird Trans Am 1978
Pontiac Firebird Trans Am 1979
Pontiac Firebird Trans Am 1980
Pontiac Firebird Trans Am 1981