This aluminium steering assembly is designed as a scale replacement for TA01, TA02 and DF01 style chassis. The black anodised finish and integrated ball bearing support are intended to reduce steering play and provide a firmer connection between the servo linkage and the steering knuckles.
Only the chassis listed in the product title are supported, so verify your model and mounting points before purchasing. Installation is intended to use existing mounting points on those chassis, and the part functions as a mechanical upgrade to the steering linkage rather than an electronic component.
In practical terms the assembly helps tighten steering response and make small steering adjustments more consistent; it is commonly fitted when upgrading from stock plastic to metal steering components.