QA1 52610D850 Front Lower Control Arm Coilover Conversion Kit Double Adjustable 850 lb/in Springs

The QA1 52610D850 is a front lower control arm coilover conversion kit designed to replace the factory coil spring and shock setup with a fully adjustable coilover system. This budget-friendly kit uses an upper bracket instead of a full upper control arm, adding 3–4 degrees of caster while delivering ride height adjustability through the included coilover shocks.

Key Features:

• Double adjustable coilover shocks — independently tune compression and rebound valving to match your specific driving needs
• 850 lb/in high-travel springs — dyno-tested springs designed for performance street and track use
• Lower control arm constructed from 12-gauge HSLA steel tubing — powder coated for long-lasting corrosion resistance
• QA1 performance ball joints and low-friction, maintenance-free polymer bushings for improved handling and zero routine upkeep
• Upper bracket design adds 3–4 degrees of caster; compatible with an optional tubular upper control arm for additional caster, camber, and strength
• Compatible with popular drop spindles — use with drop spindles for even greater ride height reduction
• 100% dyno tested and serialized shocks — every shock is individually tested before leaving the factory
• All hardware included — coilover hardware, nuts, bolts, bump stops, and all required fasteners are in the box
• Spindles must be compatible with 73–87 ball joints
• Proudly designed and manufactured in Lakeville, MN, USA

QA1 double adjustable shocks are eligible for a limited lifetime warranty when registered at QA1.net/Warranty. This kit is an ideal starting point for restomod builds seeking adjustable stance and improved front-end geometry without a full control arm replacement.