QA1 RCK52465 Rear Pro Coil MOD Series Coilover Kit 77-96 GM B-Body 300 lb Springs

The QA1 RCK52465 is a bolt-in rear coilover conversion kit designed for 1977–1996 GM B-Body vehicles, including the Chevrolet Impala and Caprice. This Big Wheel Pro Coil kit pairs QA1's multi-patent-pending MOD Series shocks with 300 lb. springs, delivering an ideal balance of street performance and drag strip capability — all without cutting or welding.

Adjustable Ride Height:

• Accommodates up to 28" wheels on Box-style B-Bodies and up to 26" wheels on Bubble-style B-Bodies
• Raise ride height up to 0.5" above stock or lower up to 2.25" below stock
• Dial in your preferred stance quickly and precisely

MOD Series Shock Technology:

• QuickTune Technology — dry modular valve packs can be swapped out while the shock remains on the vehicle
• Revalve without interrupting the oil path or exposing internals to debris or air contamination
• Medium compression and rebound valve packs included standard; soft and firm packs available separately
• Double-adjustable design with adjustable low-speed bleed for fully independent compression and rebound control
• Nitrogen-charged canister available in piggyback or remote configuration for tight installation spaces
• Indexable base eyelet allows optimal shock and canister placement angle
• 100% dyno tested and serialized; proudly made in Lakeville, Minnesota

Kit Contents & Installation:

• Includes all necessary hardware for a complete bolt-in installation
• Suitable for garage installation or professional shop fitting
• Compatible with everyday street cruisers, custom big-wheel builds, and high-horsepower hot rods

The QA1 RCK52465 transforms the rear suspension of classic GM B-Body cars with a proven, performance-engineered coilover system that delivers both the stance and the dynamic control serious builders demand.