This single-piece aluminium rear upper arm is engineered as a left-side replacement for TRAXXAS Revo and Revo 3.3 applications. The sandwich assembly uses screws and pins to retain the bushings and mounting interfaces, providing a stiffer, longer-wearing alternative to the factory plastic component.
From a setup perspective the arm locates the rear suspension pick-up and directly affects camber and toe under dynamic load; the aluminium link reduces compliance relative to plastic parts, changing chassis feedback and requiring consideration when tuning dampers and anti-squat. The package contains the left arm plus the specified screws and pins described in the product title.
Installation procedure: secure the arm with the supplied screws and pins, verify chassis alignment and driveline clearance, and inspect shock and driveshaft interfaces after fitment. Follow routine RC service checks to maintain reliable performance.