SuperPro Complete Lower Control Arm Kit - TRC472 TRC472 is the complete SuperPro lower control arm upgrade for lifted 4WDs—fix alignment issues, gain clearance and articulation, and install stronger arms built for harsh off-road conditions. Features and Benefits SKU TRC472: Overcomes seized lower inner camber bolts, worn ball joints, and bush replacement headaches. Two complete arm assemblies included with all SuperPro bushings pre-installed. Camber/caster adjustable with up-rated camber bolts offering four positions. Re-designed and up-rated ball joints for increased strength and durability. Camber increase version is ideally suited to a lifted vehicle. Enhances your 4WD's handling and performance; designed to solve alignment issues after a lift. High-grade steel construction with high-quality welding and assembly for harsh off-road conditions. Manufactured, tested, and designed in Australia; "Engineered to Outperform" OE and competitor products. Approved Nationally – VSB 14 compliant (ADR compliant). No NVH increase with SuperPro bushings, plus excellent material memory and abrasion resistance. Outperforms conventional rubber bushings in durability and control.