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

FF-03 service differential ring

This service ring gear is designed to fit the Tamiya FF-03 chassis and is catalogued under part FF03-05/LB. It replaces the internal ring gear in the differential and is suitable for repair work or parts renewal when the original shows signs of wear.

To fit, perform standard differential disassembly, inspect the mating pinion, bearings and housing, then reassemble ensuring correct tooth contact. Look for burrs or damaged teeth, confirm even rotation, and use a compatible diff grease to protect the engagement surfaces after installation.

Keeping the ring gear in good condition helps preserve steady engagement and reduces drivetrain vibration. Replacing a compromised ring is a straightforward maintenance step to maintain reliable handling on the road or at the track.