GPM Racing Alloy Middle Shaft Joint - 1PR for Tamiya TT02 (TT2315)

Precision alloy centre joint for TT-02 drivetrains

The TT2315 middle shaft joint is engineered for the TAMIYA TT02 platform as a precision aftermarket replacement. Manufactured to provide a stiffer centre coupling, it is suited to builders who prioritise alignment stability and long term durability for centre driveline connections.

Installation follows standard practice: the joint replaces the factory centre coupling between the gearbox output and the centre driveshaft. Use basic tools to access the centre tunnel, verify spline engagement, and apply consistent torque to hardware to avoid misalignment and binding.

In workshop tuning, this precision alloy joint reduces axial and lateral play at the mid connection and maintains consistent shaft geometry under load, aiding repeatable handling and predictable drivetrain feedback. It is a professional-grade aftermarket reinforcement intended for repair and incremental performance improvements on TT-02 drivetrains.

How does this joint differ from the stock coupling?

The alloy joint offers increased rigidity and tighter tolerances compared with common plastic or composite couplings, which reduces centre play and helps preserve shaft alignment under load.

Are any setup checks required after fitting?

After fitting, confirm spline seating, verify concentricity of the centre shaft, and recheck fastener torque after an initial run to ensure no shift has occurred.

Is this suitable for both repair and tuning use?

Yes, it is intended as an aftermarket repair item and as an incremental upgrade for builders seeking improved driveline stability during setup and competition use. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.