Tamiya TL01 38mm Hard Steel Universal Swing Shaft set by GPM TL1238S  [TL1238S]

TL01 drivetrain upgrade

This is a hard steel 38mm universal swing shaft set intended for the Tamiya TL01 chassis, supplied by GPM under model TL1238S. The set is an RC-scale drivetrain part made to replace stock swing shafts, offering a stiffer steel alternative that addresses play and wear in the stock components without changing chassis geometry.

The component is provided as a ready pair, suitable for direct swap where TL01-spec swing shafts are used. Installation typically involves removing the wheel hubs and drive cups, replacing the stock shafts with the 38mm set, and verifying clearance with suspension travel and steering throw. Use correct fastener torque for the TL01 layout and inspect compatibility with existing drive cups and universal joints before final assembly.

In tuning terms, switching to a hard steel shaft alters drivetrain stiffness and long-term wear behavior, so expect crisper power transfer at the expense of slightly increased mass compared with lightweight alloys. This makes the part useful where durability and reduced axial play are priorities, such as track practice or repetitive running sessions.

Choose this set when you need a straightforward, steel replacement for TL01 swing shafts that prioritises durability and reduced driveline play, and verify fitment with your existing TL01 drive cups before installation.