QA1 DD501-2501 HD Pro Rear Coilover Conversion System 3.25" Axle Double Adjustable 250lb

The QA1 DD501-2501 HD Pro Rear Coilover Conversion System is a comprehensive rear suspension upgrade designed for performance builds requiring precise shock tuning and improved handling characteristics. Built around a 3.25" axle tube fitment, this system delivers the adjustability and durability that serious performance and race-oriented applications demand.

This kit includes everything needed to convert your rear suspension to a coilover setup. The centerpiece of the system is a pair of double adjustable coilover shocks, giving you independent control over both compression and rebound damping so you can dial in the exact ride and handling balance for your application. A 40" weld-in tube is included to simplify installation and ensure a clean, solid mounting solution.

Kit Includes:

• 2x Double adjustable coilover shocks
• 2x 250 lb/in rate coilover springs
• 40" weld-in mounting tube
• All necessary mounting hardware

Key Features:

• Double adjustable damping — independent compression and rebound adjustment for precise tuning
• 250 lb/in spring rate — suited for performance street and competition use
• 3.25" axle tube compatibility — designed to fit common rear axle housings used in popular builds
• Weld-in tube design — provides a strong, secure coilover mount integrated into the chassis or housing
• Complete conversion kit — shocks, springs, tube, and hardware included for a straightforward installation

The QA1 DD501-2501 is an ideal solution for builders and fabricators looking to replace leaf spring or stock suspension setups with a fully adjustable coilover system. QA1's HD Pro line is engineered for demanding performance environments where consistent, repeatable damping performance is critical.