Tamiya T3-01 Internal Gear Ratio Tuning Kit - Factory Pro O-AP0004  [FP-O-AP0004]

Adjustable internal ratio for T3-01 tuning

This Factory Pro O-AP0004 gear set provides an aftermarket internal gear ratio option specifically for the Tamiya T3-01 chassis. The set changes the relationship between internal gears so hobbyists can refine throttle response and boost low-end acceleration without altering pinion or spur sizes.

Fitment follows normal T3-01 gearbox service procedures: open the transmission case, remove the original internal gears, install the supplied gears, set correct gear mesh and endplay, then reassemble while checking bearings and shims. This kit is intended as a drivetrain tuning aid, not as a replacement for external transmission parts.

Fits These Chassis

• Tamiya T3-01

For builders wanting a simple drivetrain-level adjustment on the T3-01, the Factory Pro O-AP0004 set offers a direct swap to alter internal ratio behaviour; always confirm fit and bearing condition during installation for best longevity.