Tamiya FF-03 Spare Ring Gear FF03-05/LB by 3Racing  [FF03-05/LB]

FF-03 differential spare ring

This ring gear is intended for the Tamiya FF-03 chassis and is supplied as part FF03-05/LB. It replaces the worn ring inside the model differential and is suitable for regular maintenance, repair, or refresh tasks to keep the drivetrain operating cleanly.

Installation follows conventional differential disassembly: inspect the mating pinion, bearings, and diff case for wear, then reassemble carefully to achieve correct tooth contact. Remove any burrs, confirm the ring spins freely, and apply a compatible differential grease to ensure consistent lubrication of meshing surfaces.

In tuning and upkeep, a correctly seated ring improves engagement consistency and reduces drivetrain noise. Swapping a worn ring is a routine step to maintain reliable performance during club runs or practice sessions.