MR-4TCSD Compatible LCG Swing Shaft Mount - YOKSD644A by Yokomo  [YOKSD644A]

Low CG Swing Shaft Mount — MR-4TCSD

The Yokomo YOKSD644A LCG Aluminum Shaft Holder is a precision component created for MR-4TCSD low-centre-of-gravity setups. It serves as a rigid support for the drive/swing shaft assembly, concentrating mass toward the chassis centreline with machined aluminium construction.

Fitment and role: fitted in place of the stock swing shaft holder on MR-4TCSD rigs, this mount adjusts shaft height and helps straighten drivetrain geometry. It is aimed at hobby tuners making fine vertical changes to swing shaft location to refine handling balance and cut driveline friction from misalignment.

Installation notes: installs into the factory swing shaft location using existing MR-4TCSD mounting points. On installation, confirm bearings are fully seated, check shaft endplay, torque fasteners evenly, and verify unrestricted rotation prior to reassembling the gearbox and suspension. Re-check bearing clearance after a short run.

Maintenance and tuning: aluminium needs normal care—inspect for surface marks or burrs after use and re-verify alignment after any gear changes. Small holder adjustments can produce measurable differences in roll and throttle response, so change settings gradually and log each test.

For MR-4TCSD tuners after controlled LCG changes and cleaner drivetrain geometry, the YOKSD644A is a compact aluminium upgrade that helps refine balance without reworking chassis geometry.