QA1 RCK52441 Rear Pro-Coil MOD Series Coilover Kit 64-72 GM A/G-Body 14in. 150lb. Springs

The QA1 RCK52441 is a bolt-in rear coilover conversion kit engineered for 1964–1972 GM A-Body and G-Body muscle cars. This complete kit delivers the pinnacle of suspension tunability through QA1's multi-patent-pending MOD Series shock technology, purpose-built for high-performance drag racing, pro-touring, and street performance applications.

MOD Series QuickTune Technology:

• Fully re-valve the shock in minutes using dry modular valve packs — all while the shock remains mounted on the car
• Industry-first design revalves without interrupting the oil path or exposing the shock to debris or air contamination
• Medium compression and rebound valve packs included standard; soft or firm packs available separately
• Double-adjustable design with adjustable low-speed bleed provides fully independent control over compression and rebound characteristics
• Four-way adjustable valving for independent tunability of both high- and low-speed compression and rebound

Kit Includes:

• Two MOD Series aluminum coilover shocks
• 14-inch springs rated at 150 lb/in.
• Specially designed mounting brackets
• All necessary hardware for a complete bolt-in installation

Additional Features:

• Fully threaded aluminum shock body for ride height adjustability
• Nitrogen-charged canister available in piggyback or remote configuration for tight installation spaces
• Indexable base eyelet — reposition at any angle for optimal shock and canister placement
• Mounting adjustability to accommodate a variety of vehicle configurations
• 100% dyno tested and serialized at QA1's Lakeville, Minnesota facility
• Proudly made in the USA

Whether you're chasing faster elapsed times at the drag strip or carving corners on a pro-touring build, the QA1 RCK52441 rear coilover kit delivers an unprecedented level of suspension tunability in a complete, bolt-in package for classic GM muscle cars.