QA1 99-06 Chevrolet Silverado Pro Front Coil-Over System - Single Adj. - 10in x 750lbs/in - Aluminum

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 750 for use on 99-06 Silverados/Sierras. 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

• 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

The QA1 qapGS517-10750C Pro Front Coil-Over System is a front single-adjustable stock-mount shock kit designed for 1999-2006 Chevrolet Silverado and GMC Sierra applications. It includes a 10-inch, 750 lb/in spring and provides adjustable ride height and valving control, allowing you to tune suspension response for street performance, autocross, road racing, drag racing, or street rod use. The shock has a 9.63-inch compressed length and 14.5-inch extended length for high-travel suspension performance.
Built specifically for QA1 Pro Coil Systems, this American-made suspension kit features lightweight high-travel springs with fewer coils and a smaller wire diameter. This design increases travel, reduces unsprung weight, and helps the suspension react more quickly to changing road and track conditions. The fully threaded shock body allows precise ride-height adjustment for stance control and suspension weight balancing, while simultaneous compression and rebound adjustment helps optimize ride quality and handling.
The QA1 Pro Coil System is designed for easy bolt-in installation with factory or upgraded QA1 tubular control arms. It is dyno tested, serialized, serviceable, and rebuildable through QA1 authorized service centers. The system is sold in pairs and carries a limited lifetime warranty. With durable construction, adjustable performance, and U.S. manufacturing, the QA1 qapGS517-10750C provides a practical upgrade for drivers seeking greater control over the front suspension of their compatible Silverado or Sierra.

• Achieve the balance of ride quality and performance with simultaneous compression and rebound adjustment.


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


• Provides up to 2 inches of ride-height adjustment for stance and handling tuning.


• Includes a 10-inch spring with a 750 lb/in spring rate.


• Limited lifetime warranty for added peace of mind.


• Made in the USA.

Features:

• Application: Front Pro Coil-over system for compatible 1999-2006 Chevrolet Silverado and GMC Sierra models.

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

• Spring: Includes a 10-inch high-travel spring rated at 750 lb/in.

• Ride Height: Fully threaded shock body enables up to 2 inches of ride-height adjustment.

• Installation: Easy bolt-in design works with factory or QA1 tubular control arms.

• Performance: Lightweight high-travel spring design reduces unsprung weight and improves suspension response.

• Serviceability: Dyno tested, serialized, serviceable, and rebuildable by QA1 authorized service centers.

• Warranty: Limited lifetime warranty.

• Construction: Proudly made in the USA.

Fitment:
Chevrolet Silverado 1500 Base 1999
Chevrolet Silverado 1500 Base 2000
Chevrolet Silverado 1500 Base 2001
Chevrolet Silverado 1500 Base 2002
Chevrolet Silverado 1500 Base 2003
Chevrolet Silverado 1500 Base 2004
Chevrolet Silverado 1500 Base 2005
Chevrolet Silverado 1500 Hybrid 2004
Chevrolet Silverado 1500 Hybrid 2005
Chevrolet Silverado 1500 Hybrid 2006
Chevrolet Silverado 1500 LS 1999
Chevrolet Silverado 1500 LS 2000
Chevrolet Silverado 1500 LS 2001
Chevrolet Silverado 1500 LS 2002
Chevrolet Silverado 1500 LS 2003
Chevrolet Silverado 1500 LS 2004
Chevrolet Silverado 1500 LS 2005
Chevrolet Silverado 1500 LS 2006
Chevrolet Silverado 1500 LT 1999
Chevrolet Silverado 1500 LT 2000
Chevrolet Silverado 1500 LT 2001
Chevrolet Silverado 1500 LT 2002
Chevrolet Silverado 1500 LT 2003
Chevrolet Silverado 1500 LT 2004
Chevrolet Silverado 1500 LT 2005
Chevrolet Silverado 1500 LT 2006
Chevrolet Silverado 1500 SS 2003
Chevrolet Silverado 1500 SS 2004
Chevrolet Silverado 1500 SS 2005
Chevrolet Silverado 1500 SS 2006
Chevrolet Silverado 1500 WT 2002
Chevrolet Silverado 1500 WT 2003
Chevrolet Silverado 1500 WT 2004
Chevrolet Silverado 1500 WT 2005
Chevrolet Silverado 1500 WT 2006
Chevrolet Silverado 1500 Z71 2004
Chevrolet Silverado 1500 Z71 Off-Road 2005
GMC Sierra 1500 Base 2002
GMC Sierra 1500 Base 2003
GMC Sierra 1500 Base 2004
GMC Sierra 1500 Base 2005
GMC Sierra 1500 C3 2001
GMC Sierra 1500 Denali 2002
GMC Sierra 1500 Denali 2003
GMC Sierra 1500 Denali 2004
GMC Sierra 1500 Denali 2005
GMC Sierra 1500 Denali 2006
GMC Sierra 1500 HT 2002
GMC Sierra 1500 Hybrid 2005
GMC Sierra 1500 Hybrid 2006
GMC Sierra 1500 SL 1999
GMC Sierra 1500 SL 2000
GMC Sierra 1500 SL 2001
GMC Sierra 1500 SL 2002
GMC Sierra 1500 SL 2003
GMC Sierra 1500 SL 2006
GMC Sierra 1500 SLE 1999
GMC Sierra 1500 SLE 2000
GMC Sierra 1500 SLE 2001
GMC Sierra 1500 SLE 2002
GMC Sierra 1500 SLE 2003
GMC Sierra 1500 SLE 2004
GMC Sierra 1500 SLE 2005
GMC Sierra 1500 SLE 2006
GMC Sierra 1500 SLT 1999
GMC Sierra 1500 SLT 2000
GMC Sierra 1500 SLT 2001
GMC Sierra 1500 SLT 2002
GMC Sierra 1500 SLT 2003
GMC Sierra 1500 SLT 2004
GMC Sierra 1500 SLT 2005
GMC Sierra 1500 SLT 2006
GMC Sierra 1500 WT 2002
GMC Sierra 1500 WT 2003
GMC Sierra 1500 WT 2004
GMC Sierra 1500 WT 2005
GMC Sierra 1500 WT 2006