Yokomo YOKSD644A MR-4TCSD LCG Aluminum Shaft Holder  [YOKSD644A]

MR-4TCSD LCG Shaft Holder

The Yokomo YOKSD644A LCG Aluminum Shaft Holder is an RC-scale swing shaft support designed around low center-of-gravity tuning for the MR-4TCSD platform. It serves as a fixed mount for the drive/swing shaft assembly, using machined aluminum to keep the assembly rigid while keeping mass close to the chassis center line.

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

Installation notes: the part installs into the existing swing shaft location and works with the original mounting points and fasteners on MR-4TCSD layouts. When fitting, confirm bearing seating and shaft play, tighten fasteners evenly, and verify free rotation before reassembling the gearbox and suspension. Routine inspection for thread engagement and bearing clearance is recommended after initial test runs.

Maintenance and tuning: aluminium construction requires normal care—check for burrs or contact marks after use, and re-check alignment if you change spur or pinion sizes. Small adjustments to holder position can translate into measurable changes in chassis roll response and throttle feedback, so test incrementally and record settings.

For MR-4TCSD owners seeking small, reliable changes to shaft height and drivetrain alignment, the YOKSD644A offers a straightforward aluminum upgrade that supports LCG tuning without altering major chassis geometry.