QA1 Pro Rear Coil-Over System Single Adjustable 12in 250lbs/in Aluminum for Select 1978-1996 GM B-Body RCK52384

Fits select 1978-1996 Buick, Chevrolet, Oldsmobile, and Pontiac B-Body vehicles including the LeSabre, Roadmaster, Caprice, Impala SS, Delta 88, and Parisienne.

The QA1 Pro Rear Coil-Over System is a complete bolt-in conversion kit designed to replace the factory shock and spring setup with a modern, tunable suspension. This system utilizes a single-adjustable aluminum shock, providing 18 positions of simultaneous rebound and compression adjustment to fine-tune ride quality and handling performance with a single knob. The fully threaded shock body allows for precise ride height adjustments, ranging from 0.5 inches higher than stock to 2.25 inches lower than stock.

This kit features American-made, lightweight high-travel springs. These springs are engineered with fewer coils and a smaller wire diameter to increase suspension travel and reduce unsprung weight, allowing the suspension to react faster to road inputs. Every shock is 100% dyno tested and serialized at the QA1 factory in the USA to ensure consistent performance.

• Manufacturer Part Number: RCK52384
• Adjustment Type: Single Adjustable (18 positions)
• Spring Rate: 250 lbs/in
• Spring Length: 12 inches
• Material: Lightweight Aluminum Shock Body
• Installation: Direct Bolt-In; no cutting or welding required
• Maintenance: Fully rebuildable and revalveable
• Warranty: Limited Lifetime Warranty

Included Hardware: Two (2) single adjustable shocks, two (2) high-travel springs, vehicle-specific USA-made mounting brackets, and all necessary installation hardware.