YOKSD643G by Yokomo — MR-4TCSD Graphite Ring & Drive Gear Set  [YOKSD643G]

These graphite ring and drive gears are designed for MR-4TCSD front one-way and solid axle installations. They are provided as replacement parts to restore correct front drive engagement where a direct-fit graphite gear set is required.

Check compatibility and condition before purchase: ensure your chassis uses the MR-4TCSD front assembly, review gear mesh and bearing wear, and replace the set if you detect play or intermittent engagement. Graphite is selected for its dimensional consistency, aiding dependable mesh across maintenance intervals.

Fitting recommendations: disconnect the battery and secure the model, remove the front drive housing following the chassis manual, clean mating surfaces thoroughly, fit the gears ensuring correct mesh and alignment with the front one-way or solid axle components, and rotate the assembly by hand to confirm smooth engagement before reconnecting electronics and testing at low throttle.

Service note: use this set during diagnostic sessions to confirm gear-related driveline issues and when tuning mesh for optimal feel and longevity.