QA1 Pro Rear Coil-Over System Double Adjustable Aluminum for 1964-1972 GM A/G-Body - 12in x 200lbs/in - RCK52358

Fits select 1964-1972 Chevrolet Chevelle, Monte Carlo, and Pontiac Grand Prix models. This QA1 Pro Rear Coil-Over System provides a complete suspension transformation, allowing you to dial in the perfect balance of ride quality and track performance with independent control over suspension movement.

Engineered for versatility, these double-adjustable shocks feature 18 positions of compression and 18 positions of rebound adjustment, resulting in 324 possible valving combinations. The fully threaded billet aluminum bodies allow for precise ride height tuning, ranging from a 0.5-inch lift above factory height to a 2.25-inch drop for a lower center of gravity and aggressive stance.

Constructed from lightweight billet aluminum in the USA, each shock is 100% dyno tested and serialized to ensure consistent performance. These units are fully serviceable and rebuildable, making them a long-term solution for street performance, drag racing, or autocross applications. The kit includes 12-inch high-performance springs with a 200 lbs/in rate for optimized rear-end stability.

• Adjustment Range: 18 rebound / 18 compression settings (324 combinations)
• Ride Height: Adjustable from +0.5" to -2.25" relative to stock
• Spring Specifications: 12" length, 200 lbs/in spring rate
• Construction: Lightweight billet aluminum threaded body
• Installation: Direct bolt-in for factory mounting points
• Manufacturing: Made in the USA and 100% dyno tested
• Quantity: Sold as a pair
• MPN: RCK52358