MR-4TCSD LCG Shaft Holder Upgrade - YOKSD644A by Yokomo  [YOKSD644A]

MR-4TCSD LCG Shaft Mount

The Yokomo YOKSD644A LCG Aluminum Shaft Holder is an RC swing shaft support engineered for MR-4TCSD low-center-of-gravity tuning. It provides a fixed mount for the drive/swing shaft assembly, using precision-machined aluminum to keep the assembly stiff while concentrating mass close to the chassis centerline.

Fitment and role: this shaft holder replaces the stock unit in MR-4TCSD swing shaft layouts to alter shaft height and improve drivetrain alignment. It is intended for hobby-level tuning where small vertical changes to swing shaft position help balance handling and reduce driveline friction from misalignment.

Installation notes: the part installs in the original swing shaft location and uses the MR-4TCSD mounting points and fasteners. When fitting, check bearing seating and axial play, tighten fasteners evenly, and verify free rotation before reassembling gearbox and suspension. Perform a post-install inspection of thread engagement and bearing clearance after initial test runs.

Maintenance and tuning: aluminum construction needs routine inspection—look for burrs or contact marks after use, and re-check alignment if you change spur or pinion sizes. Small adjustments to holder position can produce noticeable changes in chassis roll response and throttle feedback, so adjust incrementally and record settings.

For MR-4TCSD owners wanting a straightforward way to tweak shaft height and drivetrain alignment, the YOKSD644A offers a reliable aluminum upgrade that supports LCG tuning without major chassis modification.