The Tamiya 9803491 Suspension Arm Bushing B helps refine suspension movement on the TRF421 chassis, delivering steadier articulation under load. These inserts are made to cut unwanted slack and improve overall reliability when pushing the car hard.
Made to match TRF421 suspension mounts, the bushings reduce binding and keep pivot points precise for predictable handling. Robust materials mean fewer service intervals and more time tuning lines and shocks.
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