QA1 GM FRONT SINGLE ADJUSTABLE PRO COIL-OVER SYSTEM GS401-10400A

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.

Note: Designed to fit applications with small block engines. Coil-over shocks are single adjustable Pro series GS401 shocks. Springs are 10 in. tapered with a pigtail upper end.

Kit includes:

• 2 Coil-over springs
• 2 Coil-over shocks.
• Mounting hardware.

Download installation instruction's here.

GM universal.

All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.

QA1 warrants that the products will be free from defects in material and workmanship for one year from date of sale to the original purchaser. QA1 makes no other warranty of any kind, express or implied.

QA1 offers a Limited Lifetime Warranty (when registered for) on products with the following eligibility:

• QA1 Promo Star, Stocker Star, Ultra Ride and Aluma Matic shocks purchased after 09/01/2020.
• Limited lifetime warranty claims must be made directly through QA1.
• Registration required.
• Full warranty terms and conditions at https://www.qa1.net/warranty.