QA1 1973-1986 Chevy C10 Rear Suspension Conversion System - GM 10 Bolt - Double Adj. (250lbs/in) R230-250

Fits select 1973-1986 Chevrolet C10 Pickup and Suburban models equipped with a GM 10-bolt rear axle.

Transform the handling of your Square Body with the QA1 R230-250 Rear Suspension Conversion System. This engineered-from-scratch kit replaces the restrictive factory leaf springs with a modern torque arm design that eliminates the binding issues common in traditional 4-link setups. Designed for a straightforward installation, this system bolts directly to factory mounting points, allowing you to upgrade your rear suspension without removing the truck bed.

The system features double-adjustable coil-over shocks, providing independent control over compression and rebound to fine-tune your ride quality and launch characteristics. With a 250lbs/in spring rate and a firm valving profile, it offers superior stability and body control. The adjustable coil-over mounts allow for a significant drop of 4" to 7" below stock height, helping you achieve the perfect stance while maintaining suspension travel.

• MPN: R230-250
• Axle Compatibility: Fits GM 10-Bolt housings
• Adjustment Range: 4" to 7" drop below factory ride height
• Shock Type: Double adjustable coil-overs, 100% dyno tested and serialized
• Spring Rate: 250lbs/in
• Construction: Bolt-in torque arm design manufactured in Lakeville, Minnesota
• Installation: No bed removal required; includes all necessary mounting hardware