QA1 GM Pro Front Coil-Over System - Double Adjustable - 10in x 400lb/in - Aluminum - Select GM 1973-2004 (GD401-10400C)

Fits select 1973-2004 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models, including Regal, Monte Carlo, El Camino, S10, and Sonoma. This QA1 GM Pro Coil System provides the ultimate level of front suspension tuning for street performance, drag racing, and pro-touring applications.

This double-adjustable system allows for independent control over compression and rebound valving, enabling you to dial in your suspension for specific track conditions or street comfort. The billet aluminum shocks feature a fully threaded body, allowing for up to 2 inches of ride height adjustment to achieve the perfect stance and improve weight balance. The included 10-inch, 400lb/in high-travel springs are manufactured in the USA with a specialized wire diameter and fewer coils to reduce unsprung weight and provide increased travel without binding.

• Manufacturer Part Number: GD401-10400C
• Independent compression and rebound double-adjustable valving
• Lightweight billet aluminum coil-over shocks
• 10-inch high-travel springs with 400lb/in rate
• Up to 2 inches of ride height adjustment
• Easy bolt-in installation to factory or QA1 tubular control arms
• 100% dyno tested and serialized
• Fully serviceable and rebuildable design
• Includes one pair of front coil-overs
• Limited Lifetime Warranty
• Made in the USA