QA1 ALN12150K Pro-Rear Coilover Conversion Kit Non-Adjustable Aluma Matic 150lb/in 3.00" Axle

The QA1 ALN12150K is a complete Pro-Rear coil-over conversion kit designed for do-it-yourself builders looking to upgrade from stock shocks and springs to a purpose-built coilover suspension. This kit is built around QA1's proven Aluma Matic non-adjustable shock, delivering a precision-valved, performance-tuned ride without the complexity of manual damping adjustment.

At the heart of this kit are two USA-made Aluma Matic coilover shocks featuring a lightweight aluminum body, threaded for coil-over spring perch adjustment. Each shock is 100% dyno-tested and serialized at the factory, and features a precision-machined aluminum piston with a PTFE piston band, a 15mm centerless ground hard chrome-plated solid piston rod, and a three-step sealing system for long-term reliability.

Kit Contents & Specifications:

• Two (2) Aluma Matic non-adjustable coilover shocks
• 150 lb/in linear rate coil-over springs (12" length)
• Designed for 3.00" diameter axle tubes
• Includes USA-made mounting brackets, upper crossmember, mounting tabs, and all necessary hardware
• Shocks are revalveable and rebuildable by the QA1 factory or authorized service centers
• Lightweight anodized aluminum shock body
• Precision-machined aluminum piston with PTFE piston band
• 15mm centerless ground, hard chrome-plated solid piston rod
• Three-step sealing system
• 100% dyno-tested and serialized
• Made in the USA

This kit is commonly used in drag racing, street performance, and street rod applications. Welding is required for installation. QA1 Aluma Matic shocks purchased after 09/01/2020 are eligible for a limited lifetime warranty — registration required at QA1.net/Warranty.