QA1 RCK52334 Rear Pro-Coil Coilover Conversion Kit Double Adjustable Shocks & Brackets No Springs

The QA1 RCK52334 is a bolt-in rear coilover conversion kit designed for 1964–1972 GM A-Body vehicles. This shocks-and-brackets-only kit delivers a serious suspension upgrade with double adjustable valving, giving builders the freedom to select their preferred spring rate separately. Made in the USA, this kit is a proven solution for street performance, drag racing, autocross, and road racing builds.

At the heart of this kit are two lightweight billet aluminum coil-over shocks featuring a fully threaded body for ride height adjustability. QA1's double adjustable design provides 18 positions of independent compression adjustment and 18 positions of independent rebound adjustment, unlocking up to 324 possible valving combinations to precisely dial in your suspension for any driving condition.

Kit Contents:

• 2x Double Adjustable Proma Star aluminum coilover shocks
• Specially designed USA-made mounting brackets
• All necessary hardware for installation
• Springs not included — compatible with 14 in. coilover springs (sold separately)

Key Features:

• Bolt-in installation — no cutting or welding required
• Fully threaded aluminum shock body for ride height adjustment (up to 1/2 in. above stock to 2.25 in. below stock)
• 18-position independent compression and rebound adjustment (324 total valving combinations)
• 100% dyno tested and serialized at the factory
• Serviceable and rebuildable by QA1 authorized service centers
• Eligible for QA1's Limited Lifetime Warranty (registration required at QA1.net/Warranty)
• Proudly made in Lakeville, Minnesota, USA

Note: Lower shock mount bracket may not be compatible with all aftermarket rear end housings. Springs are sold separately; this kit is compatible with 14 in. coilover springs.