QA1 RCK52453 Rear Pro-Coil MOD-Adjustable Coilover Kit 12in. 250lb. Springs

The QA1 RCK52453 is a bolt-in rear coilover conversion kit designed for 1978–1996 GM B-Body vehicles. Featuring QA1's advanced MOD Series shocks, this kit delivers the ultimate in tunability and suspension performance for street, pro-touring, and track use.

At the heart of this system is QA1's QuickTune Technology — dry modular valve packs that can be swapped out in minutes, all while the shock remains on the car. This allows complete revalving without interrupting the oil path or exposing the shock to debris and air contamination, an industry first. Medium compression and rebound valve packs are included as standard.

The fully threaded aluminum shock bodies and adjustable mounting brackets allow you to dial in your exact desired ride height, ranging from higher-than-stock to significantly lower. The kit installs without cutting or permanent modifications.

Kit Includes:

• Two MOD Series adjustable aluminum rear shocks
• Two 12-inch coil springs — 250 lb/in spring rate
• Specially designed upper and lower mounting brackets
• All necessary mounting hardware for a complete installation

Key Features:

• MOD Series four-way adjustable valving with remote nitrogen canisters
• QuickTune Technology for rapid in-car revalving
• Fully threaded aluminum shock body for precise ride height adjustment
• Bolt-in installation — no cutting or welding required
• Proudly made in the USA in Lakeville, Minnesota
• Limited Lifetime Warranty (registration required at QA1.net/Warranty)

The QA1 RCK52453 is an excellent upgrade for any GM B-Body owner seeking improved stance, enhanced ride quality, and serious performance capability whether on the street or the track.