MR-4TCSD Rear Input Shaft Replacement YOKSD303R - Yokomo  [YOKSD303R]

Fitment notes for MR-4TCSD rear shaft

This rear input shaft is intended for the MR-4TCSD chassis and is catalogued under the Yokomo model YOKSD303R. The write-up focuses on compatibility, installation context, and the implications for drivetrain tuning in drift setups.

Compatibility is specific to the MR-4TCSD platform as indicated by the product listing, so verify the part against your chassis prior to purchase. The shaft serves as a dedicated drivetrain replacement and mates with the gearbox and rear differential geometry of MR-4TCSD vehicles.

Installation tips: work in a clean area, remove the drivetrain cover and any retainers to access the input shaft, swap in the YOKSD303R, and refit the original screws and retaining pieces. After reassembly, ensure rotational freedom and check endplay before running the model.

Tuning considerations: the input shaft is an integral mechanical link; replacing it may influence drivetrain alignment and the way torque is delivered to the rear during drift maneuvers. After fitting, inspect gear mesh and bearing alignment and correct any lateral play to maintain reliable handling.