MR-4TCSD One-Way Drive Shaft Upgrade - YOKSD644TS by Yokomo  [YOKSD644TS]

Yokomo SD-644TS - MR-4TCSD MAIN DRIVE SHAFT W/ONE WAY
Price:
£44.38
Brand:
Yokomo
Model:
YOKSD644TS
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MR-4TCSD Drive Shaft Details

This main drive shaft is specified for MR-4TCSD installs and incorporates an internal one-way mechanism to modify power delivery characteristics for drift applications.

It serves as a direct replacement where MR-4TCSD compatibility is required, carrying motor torque into the transmission while permitting freer rotation in one direction under slip conditions to influence rear-wheel behaviour during drifts.

Fitment notes: verify spline match and bearing health before installation, orient the one-way correctly, and confirm clearance to the spur gear and gearbox housing. Employ threadlocking on fasteners as appropriate and re-evaluate wheel alignment after assembly. Basic knowledge of gearbox disassembly and refit is assumed.

Specifications

  • Item: Main drive shaft with one-way.
  • Material: Not specified.
  • Model Number: YOKSD644TS.
  • Compatibility: MR-4TCSD.

Opt for this shaft when replacing MR-4TCSD drive components or when adjusting one-way behaviour in drift package drivetrains, and carry out routine gearbox inspection after fitting.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How do I confirm this matches my existing shaft dimensions?

Measure spline count, overall shaft length, and reference any service diagram for MR-4TCSD parts to ensure the replacement matches before attempting installation.

Will the one-way interfere with normal driving?

Under normal, non-slip driving the one-way may have limited effect, but during slip events it reduces driveline resistance in one direction which can alter handling in drift practice.

If material is unspecified, what should I watch for?

Inspect for surface finish, check for deformation after initial runs, and contact the supplier if you require a specific alloy or carbon grade for high-stress applications.

Who should I ask if fitment is unclear?

If in doubt, compare the new shaft to your original part and consult the seller or a community forum with MR-4TCSD experience for confirmation before installation.

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