Tamiya TL01 38mm CNC-Grade Hard Steel Swing Shaft TL1238S by GPM  [TL1238S]

TL01 driveline performance upgrade

This 38mm hard steel universal swing shaft set is intended for the Tamiya TL01 chassis, model TL1238S. The pair replaces standard swing shafts with a machined hard steel solution to reduce axial play and increase wear resistance while keeping original chassis geometry.

The assembly is supplied as one matched pair for direct replacement in TL01 locations. Installation requires removal of wheel hubs and drive cups, insertion of the 38mm shafts, and verification of clearance through full suspension travel and steering sweep. Fasteners should be torqued to TL01 recommended values and compatibility with current drive cups and universal joints should be checked prior to final assembly.

From an engineering perspective, hard steel shafts raise torsional stiffness and extend service intervals, producing a more immediate power transfer with a slight mass increase relative to lightweight alloy options. This component is targeted at users who prioritise durability and reduced driveline lash during repetitive running and testing.

Recommended where enhanced stiffness and longevity are required for TL01 swing shafts; confirm drive cup fitment before installation.