This aluminium rear knuckle arm is a direct-replacement unit designed for hobby-grade TAMIYA TA01, TA02, DF01 and FF01 chassis. As a metal alternative to the stock plastic knuckle, it maintains suspension geometry while offering a firmer mounting point for wheel hubs and axles.
The gun metal finish and machined fit are intended to match the original mounting locations so no chassis cutting is required. During driving the part contributes to steadier rear toe and camber, which can aid lap-to-lap consistency when tuning the vehicle.
Installation follows standard swap procedures: remove the factory knuckle, relocate bearings or pins, and secure the new arm with the stock screws. After fitting confirm bearing alignment and suspension pivot clearance, and verify that hub carriers and drive shafts rotate freely through their range of motion.
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