3Racing TB03-07 7075 Aluminium Diff Shaft Technical Upgrade for Tamiya TB-03  [TB03-07]

Race-Oriented 7075 Shaft for Tuned TB-03 Setups

The 3Racing TB03-07 differential shaft for the Tamiya TB-03 is engineered to reduce drivetrain compliance and improve power transfer under high load. CNC-friendly 7075 aluminium gives a useful balance between stiffness and mass for drivers optimising acceleration and traction. This part integrates cleanly with standard TB-03 diff housings while supporting precision setup work.

Track-Focused Material Choices

Using 7075 aluminium helps limit elastic deformation in the shaft, yielding more predictable torque transfer during corner exit and acceleration. For racers tuning diff preload or gear ratios, a stable shaft reduces variables in setup evaluation.

Installation and Tuning Considerations

Fitment follows TB-03 dimensions and uses original mounting points to maintain chassis geometry. When fitting the TB03-07, confirm bearing condition and backlash settings, then run measured tests to adjust diff tuning for your specific track conditions.