Tamiya T3-01 Faster Internal Gear Ratio Gear Set by Factory Pro O-AP0004  [FP-O-AP0004]

Internal gear ratio upgrade

This Factory Pro O-AP0004 gear set is an RC-scale internal gear ratio option intended for Tamiya T3-01 chassis use. The set is designed to alter the internal gearing relationship inside the car's gear train so builders can tune throttle response and low-end acceleration without changing motor pinion or spur sizes.

Installation follows standard T3-01 gearbox servicing: open the transmission case, remove the stock internal gears, swap in the supplied gears, verify gear mesh and endplay, and reassemble with attention to bearings and shims. The set's role is strictly tuning the drivetrain behaviour within RC model limits rather than replacing external transmission components.

Compatible Models

• Tamiya T3-01

For builders who want a drivetrain-level tuning option on the T3-01, this Factory Pro O-AP0004 set offers a simple swap to adjust internal ratio characteristics; confirm fit and bearing condition during installation for best results.