The Tamiya 9007664 Diff Pulley & Case brings precision machining and increased durability to the TRF421 chassis. It is built to provide smoother differential action and dependable service life for competitive tuning and regular use.
This Tamiya 9007664 component is made to integrate with the TRF421 layout, improving handling consistency and drivetrain response. Its robust construction helps maintain gear alignment under load, ideal for precise setup work.
Whether adjusting gear mesh or performing scheduled maintenance, the diff pulley and case offers predictable behavior and resilience. Keep this part in your toolbox to support repeatable setups and track sessions.
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