QA1 GM Pro Front Coil-Over System - Double Adjustable - 10" x 450lb/in - Select GM 1968-1972

Fits select 1968-1972 Buick Skylark/Special, Chevrolet Chevelle/El Camino, GMC Sprint, Oldsmobile 442/Cutlass, and Pontiac GTO/LeMans/Tempest.

The QA1 GM Pro Coil System offers independent control over compression and rebound valving, allowing you to fine-tune your suspension for specific driving conditions, whether on the street, drag strip, or autocross course. This double-adjustable system features a lightweight billet aluminum shock body with a fully threaded exterior for precise ride height adjustments, allowing for up to a 2-inch drop to achieve the ideal stance and weight balance.

This kit includes QA1 High Travel springs, which are engineered with a smaller wire diameter and fewer coils to reduce unsprung weight and provide increased travel compared to traditional springs. Every shock is 100% dyno-tested and serialized to ensure consistent performance out of the box. Designed for a direct bolt-in installation, these coil-overs work seamlessly with factory or QA1 tubular control arms.

• Manufacturer Part Number: GD401-10450B
• Adjustment Type: Double Adjustable (Independent Compression & Rebound)
• Spring Rate: 450 lbs/in
• Spring Length: 10 inches
• Shock Material: Billet Aluminum
• Installation: Bolt-in; no welding or cutting required
• Serviceability: Fully rebuildable and serviceable by QA1 authorized centers
• Warranty: Limited Lifetime Warranty
• Origin: Made in the USA