The 3Racing Sakura D4 RWD Aluminium Upper Arm, SAK-D4820A/BK, is engineered to deliver repeatable suspension geometry under hard drifting conditions. The precision machined aluminium body reduces compliance that can alter steering and camber under load.
Built with racing setup work in mind, this arm helps maintain intended roll centres and camber settings, enabling finer adjustments to toe and steering ackermann. It supports consistent lap to lap behaviour for drivers chasing predictable handling.
Designed to bolt into Sakura D4 RWD mounting points, the arm facilitates quick comparisons between stock and upgraded geometry. When tuning, verify ball stud heights and use matched fasteners to preserve alignment precision.