QA1 R132-250 Rear Coilover Conversion Kit Single Adjustable 250lb Ford 9in. Housing

The QA1 R132-250 is a complete rear coilover suspension conversion system engineered from the ground up for C10 Squarebody trucks equipped with a Ford 9-inch rear axle housing. This fully matched, bolt-in kit replaces the factory leaf spring setup with a modern torque arm coilover system, delivering a dramatic improvement in ride quality, handling, and stance — all without cutting, welding, or removing the truck bed.

At the heart of this system is QA1's unique bolt-in torque arm design, which manages rear axle rotation and drivetrain forces under acceleration. By connecting the rear axle to a forward chassis mount, the torque arm isolates drivetrain forces from suspension movement, allowing the coilovers to focus entirely on ride quality and cornering control. A Panhard bar is also included to precisely control lateral axle location.

The kit features single adjustable QA1 coilover shocks paired with 250 lb/in. high-travel springs — a firm spring rate well suited for loaded trucks or performance-oriented street driving. The single-adjust shocks allow easy rebound tuning so drivers can dial in their preferred ride character. Ride height is adjustable from 4 to 7 inches below stock, making it easy to achieve the perfect level stance.

Kit Includes:

• Single adjustable QA1 coilover shocks (100% dyno tested and serialized)
• 250 lb/in. high-travel coilover springs
• Bolt-in torque arm
• Panhard bar for lateral axle control
• Lower trailing arms
• Frame brackets and axle brackets
• Crossmember assembly
• All necessary hardware

Key Features:

• No cutting or welding required — uses factory suspension mounting points
• 4–7 inches of rear ride height adjustment below stock
• Single adjustable shocks for easy rebound tuning
• Torque arm design eliminates axle wind-up under acceleration
• Compatible with Ford 9-inch rear axle housing
• All components manufactured in QA1's Lakeville, Minnesota facility
• Sold as a complete kit — everything included down to the hardware

The QA1 R132-250 delivers a fully engineered rear suspension solution, eliminating the guesswork of mixing components from multiple suppliers. Pair it with a QA1 front coilover system for four-corner ride height adjustability and a perfectly dialed stance.