TAMIYA TT02 Alloy Middle Shaft Joint TT2315 by GPM  [TT2315]

Reinforced alloy centre coupling for TT-02

This alloy middle shaft joint is made for the TAMIYA TT02 platform and sold as part number TT2315. It replaces the stock centre driveline coupling on TT-02 style layouts where a machined alloy joint is chosen for greater durability and alignment control.

Fitting is straightforward for experienced hobbyists: the joint installs between the transmission output and the centre driveshaft, swapping out the factory plastic or composite coupling. Standard hobby hand tools and access to the vehicle tunnel are required, and careful shaft alignment plus correct fastener torque will help avoid drivetrain binding.

When setting up or tuning the chassis, this alloy coupling reduces play at the mid connection and holds shaft alignment under load, contributing to more predictable handling and consistent drivetrain feedback. It is intended as an aftermarket repair or incremental upgrade for TT-02 drivetrains.