TRF421 Tuning Pulley by Tamiya 9007664 Diff Case  [9007664]

Price:
NZD$0.00
Brand:
Tamiya
Model:
9007664
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Refine TRF421 Drivetrain with the Tamiya 9007664 Unit

The Tamiya 9007664 Diff Pulley & Case is produced to tight tolerances to enhance the TRF421 chassis drivetrain. Its design focuses on steady diff action and long term durability for serious setup work.

Engineered for Consistent Handling

This Tamiya 9007664 part helps reduce slop and maintain gear engagement under acceleration, giving a clearer response from steering inputs. It is suited to drivers chasing repeatable lap times.

Maintenance Friendly and Sturdy

Built to withstand regular track use, the diff pulley and case is easy to service and integrates into standard TRF421 maintenance routines. Its robust construction reduces the need for frequent replacements.

Yes, the 9007664 is suitable for club racing where TRF421 rules apply. It helps maintain consistent diff behaviour throughout an event.
Basic RC tools are adequate: hex drivers, bearing press or suitable drift, and a torque feel for small fasteners. No specialised factory tools are required.
The pulley and case mainly influence drivetrain smoothness and does not change chassis balance. Improved diff action can make setup adjustments more predictable.
Inspect bearings and gears after heavy use or every few race meetings, clean drivetrain components, and reapply grease as needed to preserve performance.

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