SuperPro Complete Lower Control Arm Kit - TRC471 The SuperPro TRC471 Control Arm Kit restores alignment accuracy and enhances 4WD handling—built to last in harsh conditions and perform when it counts. Features and Benefits SKU TRC471: Solves seized lower inner camber bolts, worn ball joints, and bush replacement issues. Enhances your 4WD's handling and performance with SuperPro design, construction, and materials. Designed to solve alignment issues when you lift your 4WD. Built to last longer in harsher conditions and perform better in tough situations. High-quality welding and assembly; high-grade steel for increased strength. Approved nationally — VSB 14 compliant (ADR compliant). No increase in NVH with SuperPro bush technology. Excellent material memory and abrasion resistance—outperforms rubber. What's Included Two complete arm assemblies. All SuperPro bushings pre-installed. Re-designed and up-rated ball joints. Up-rated camber bolts for four positions. Standard configuration. Quality You Can Trust Engineered to Outperform — built to exceed stringent SuperPro QA standards.