FF-03 20T Counter Gear Replacement for TAMIYA FF03-03 by 3Racing  [FF03-03]

20-tooth counter gear for FF-03 gearsets

This 20T counter gear is supplied as a service replacement for TAMIYA FF-03 chassis gearboxes. It acts as the counter or secondary gear that engages the pinion and spur to determine drive ratio and pass torque through the gearbox train.

Use only with FF-03 compatible gear trains that accept a 20-tooth counter gear; confirm the original part style before swapping. The gear is handy for restoring vehicles with worn teeth and for adjusting gearing to match different circuits or surfaces.

Basic installation requires gearbox disassembly: remove the cover, take out the old counter gear, inspect surrounding bearings and shafts, fit the new gear while adjusting backlash and mesh, then reassemble. Run a short test and recheck engagement to ensure smooth operation and to avoid early failure.