QA1 Precision Products R131-250 Rear Suspension System with 250lb Springs

The QA1 R131-250 is a complete bolt-in rear suspension conversion system engineered specifically for 1973-1987 Chevrolet C10 trucks equipped with GM 12-bolt rear axle housing. This engineered-from-scratch system transforms your utility truck into a modern performance machine without requiring bed removal, cutting, or welding.

Key Features:

• Single adjustable coil-over shocks with 250 lb/in spring rate for firm handling characteristics
• Unique bolt-in torque arm design that eliminates the binding issues common in traditional 4-link systems
• 4 to 7 inches of ride height adjustment below stock for custom stance capability
• Superior suspension control for smooth ride quality and excellent handling characteristics
• Complete kit includes frame brackets, axle brackets, linkage assemblies, crossmember assembly, and all mounting hardware
• All components proudly manufactured in QA1's Lakeville, Minnesota facility
• 100% dyno tested and serialized shocks for guaranteed quality and performance

This system provides superior control over suspension movement through its advanced torque arm geometry. The adjustable coil-over design allows you to dial in your exact desired stance while maintaining optimal ride quality. Pair this rear system with QA1's front suspension kit to achieve ride height adjustability on all four corners for a perfectly leveled stance.