QA1 GD401-10750C Front Pro Coil Double Adjustable Coilover Shock Kit 10in 750lb/in Spring

The QA1 GD401-10750C is a front Pro Coil double adjustable coilover shock kit built for GM muscle cars and performance vehicles. Featuring lightweight billet aluminum construction and a fully threaded body, this kit delivers a powerful combination of ride height adjustability and precise valving control — from casual street driving all the way to track applications.

This kit includes a 10-inch high-travel spring rated at 750 lb/in with a large tapered flat end. The shock has a compressed length of 10.13 inches and an extended length of 14 inches, and mounts using a stock location for easy bolt-in installation. The Pro Coil design provides 0 to –2 inches of ride height adjustability, adjustable with a simple turn of the spring seat nut.

Double Adjustable Valving: Independent compression and rebound adjustment dials give you 18 positions each, yielding up to 324 unique valving combinations to fine-tune handling for any driving condition — whether you're hitting the street, autocross course, or drag strip.

Key Features:

• Double adjustable — independent compression and rebound adjustment
• Lightweight billet aluminum coilover shock body
• Includes 10-inch high-travel spring, 750 lb/in rate, large tapered flat end
• Compressed length: 10.13 in | Extended length: 14 in
• 0 to –2 inches of ride height adjustability via threaded body
• 100% dyno tested and serialized
• Serviceable and rebuildable by QA1 Authorized Service Centers
• Bolt-in stock mount installation
• Made in the USA
• Sold in pairs
• Eligible for QA1 Limited Lifetime Warranty (registration required at QA1.net/Warranty)

Suitable for drag racing, street performance, autocross, road racing, and street rod builds. A spanner wrench (P/N T114W or T115W) is required for installation. Optional thrust bearing kits (P/N 7888-109) are also available separately.