Tamiya TT02/TT02B Alloy Middle Shaft Joint TT2B315 by GPM  [TT2B315]

Alloy centre shaft coupling for TT02 family

This alloy middle shaft joint is an aftermarket replacement intended for use with Tamiya TT02 series chassis. It replaces a worn centre coupling to help recover drivetrain alignment and limit transmission slop without changing gear ratios or drive geometry.

Fitment follows standard hobby practice: separate the centre driveshaft on the TT02/TT02B, inspect nearby bearings and splines for wear, orient the new joint correctly, and tighten the fasteners to common torque values. No specialised tools beyond typical hobby tools are required.

Used as a maintenance item or for incremental tuning, the joint helps keep consistent drivetrain geometry during track sessions and regular servicing on TT02 platforms rather than delivering a large power gain.