QA1 RCK52390 Double Adjustable Rear Coilover Kit for 1965-70 Chevy B-Body, 200lb

Vehicle Fitment

• 1965-1970 Chevrolet Impala
• 1965-1970 Chevrolet Caprice
• 1965-1970 Chevrolet Bel Air
• 1965-1970 Chevrolet Biscayne
• 1965-1970 Chevrolet full-size wagons (Brookwood, Townsman, Kingswood, Estate)

Fitment Notes

• Rear position, bolt-in coilover conversion - no cutting or welding
• Includes 200 lb/in. springs; a 220 lb/in. version (RCK52391) is available for heavier builds
• Kit lowers the vehicle from stock ride height - confirm spring rate suits your car's weight before ordering, especially on later or heavily modified builds

Features

• Independent double-adjustable valving - 18 positions each for compression and rebound (324 total combinations)
• Fully threaded aluminum shock bodies for adjustable ride height
• Includes 12 in., 200 lb/in. high-travel springs engineered for QA1 Pro Coil systems
• Lightweight aluminum shock construction
• Specially designed mounting brackets included for a complete rear conversion
• 100% dyno-tested and serialized shocks
• Rebuildable and revalveable at QA1 authorized service centers

Specifications

• Vehicle Position: Rear
• Shock Valving: Double Adjustable
• Springs Included: Yes
• Spring Rate: 200 lb/in.
• Spring Length: 12 in.
• Shock Body: Aluminum, fully threaded

Included Components

• 2x Double Adjustable Rear Coilover Shocks
• 2x 12 in., 200 lb/in. High-Travel Springs
• Mounting brackets and hardware

Product Description

The QA1 RCK52390 is a complete bolt-in rear coilover conversion for 1965-70 Chevrolet full-size B-Body cars, replacing the factory leaf-spring rear suspension with a double-adjustable coilover setup. Independent compression and rebound tuning gives you real control over how the rear end responds, whether you're dialing in a comfortable street ride or tightening things up for autocross or spirited driving.

Because the shock bodies are fully threaded, you get stepless ride-height adjustment for stance or weight balancing, and the kit ships complete with the mounting brackets and hardware needed for the conversion - no fabrication required. It's a strong pairing with QA1's front coilover kits if you're planning a full front-and-rear suspension upgrade on the same car.