This AUTOACER 12-piece Rear Upper and Lower Control Arm Bushing and Ball Joint Kit is designed for Pathfinder R51 models. The components are made from steel and rubber and follow OEM-style specifications for proper fitment. The kit supports users who require a direct replacement option that is adjustable, easy to replace, sealed, and requires no drilling. Each part is formed to align with factory mounting points and is suitable for restoring rear suspension function. The set includes rear upper control arm bushings, rear lower control arm bushings, rear upper control arm ball joints, and rear lower control arm ball joints. These components help maintain consistent suspension operation by supporting arm movement, stabilizing wheel connection points, and reducing unwanted play that develops in worn bushings and joints. Ball joints and bushings are designed to fit securely into their respective housings and support the structural integrity of the rear control arm system. This kit is compatible with 2005–2010 Pathfinder R51 2.5 YD2 dCi (RWD and AWD) and 2005–2014 Pathfinder R51 3.0 V9X Turbo dCi (RWD and AWD). It covers OE part numbers including 55045-EB30B, 55501-EB300, 55502-EB300, 55502-EB31A, 55504-EB300, 54500-7S002, 54500-EB300, 54500-EA009, 55153-EB30A, 551A0-EB300, 551A0-EB31A, and 551A1-EB300 among others. These part numbers correspond to factory-style bushings and ball joints that are commonly replaced during suspension maintenance. Installation should be performed by a professional mechanic due to the need for specialized tools when pressing in or removing bushings and ball joints. Cleaning the housings, mounting points, and brackets before installation helps ensure secure seating and proper alignment. Pressing tools should be used to avoid damage, and hammering is not recommended. After installation, a professional wheel alignment is required to maintain suspension geometry, tire wear, and handling characteristics. The set is backed by a 2-year manufacturer's warranty offered by an American company, providing product support for long-term use.