QA1 RCK52363 Rear Pro Coil Double Adjustable Shock Kit 1971-1976 GM B-Body

The QA1 RCK52363 is a Rear Pro Coil Double Adjustable shock kit designed for 1971–1976 GM B-Body vehicles with big wheel rear suspension. This kit delivers race-proven performance and on-the-fly tunability for street rods, muscle cars, and performance builds that demand precise handling and ride quality control.

QA1's Pro Coil system replaces factory leaf spring rear suspension with a coilover-style setup, utilizing double adjustable shocks that allow independent tuning of both compression and rebound damping. This level of adjustability allows builders and drivers to fine-tune suspension behavior for drag racing, road course use, or street performance — all without changing springs or removing components.

Key Features:

• Double adjustable shocks — independent compression and rebound damping adjustment for precise handling tuning
• Designed for 1971–1976 GM B-Body platforms (Chevrolet Caprice, Impala, Chevelle, Monte Carlo, Buick, Oldsmobile, Pontiac full-size)
• Big Wheel rear coilover conversion kit — eliminates factory leaf springs
• No springs included — allows selection of spring rate best suited for your specific application and build weight
• High-strength steel construction for durability under performance and racing conditions
• Bolt-in installation — engineered to work with factory mounting locations
• Improves rear suspension geometry, weight transfer, and overall handling balance

Note: This kit does not include coil springs. Springs must be purchased separately to match your vehicle's weight, ride height, and performance goals. QA1 offers a full range of compatible coil springs to complete your setup.