QA1 GD507-10350C GM Pro-Coil Double Adjustable Front Coilover Shock Kit 10in. 350lb/in.

The QA1 GD507-10350C is a front Pro-Coil double adjustable coilover shock kit engineered for GM full-size vehicles. Featuring lightweight billet aluminum construction and a fully threaded shock body, this bolt-in kit delivers fully adjustable ride height and independent compression and rebound valving control in a stock-mount configuration. The compressed length is 9.63" and the extended length is 14.5", with a 10-inch spring rated at 350 lb./in.

Key Features:

• Double adjustable valving — 18 positions of independent compression adjustment and 18 positions of rebound adjustment, providing 324 total valving combinations for precise suspension tuning
• Threaded billet aluminum body — Lightweight construction allows ride height adjustment for ideal stance and weight balance optimization
• High-travel American-made springs — Fewer coils and smaller wire diameter increase coil spacing for greater suspension travel while reducing unsprung weight
• 100% dyno tested and serialized — Every shock is individually tested and serialized at the QA1 factory
• Serviceable and rebuildable — Can be serviced and rebuilt by QA1 Authorized Service Centers
• Easy bolt-in installation — Designed to use stock mounting locations without major modifications
• Made in the USA

Kit Includes:

• (2) QA1 GD507 Double Adjustable Pro-Coil Aluminum Shocks
• (2) 10-inch, 350 lb./in. tapered flat large springs
• All necessary mounting hardware

Suitable for a wide range of applications including street performance, drag racing, autocross, road racing, and street rod builds. This Pro-Coil system is sold as a pair and is 100% dyno tested, ensuring consistent, repeatable performance right out of the box.