Tamiya TRF 416 Aluminum Ball Differential by 3Racing 416-10  [416-10]

Aluminum ball differential for TRF 416

This aluminum ball differential is a drop-in replacement intended for use on Tamiya TRF 416 on-road chassis where a ball-type diff is specified. It serves as a serviceable internal diff unit that lets builders adjust diff feel through ball preload and lubricant choices rather than changing a sealed gearset.

Compatibility is limited to vehicles that use the TRF 416 differential format. Check your chassis parts list before purchase to confirm the internal diff element and housing dimensions match the TRF 416 standard. This unit is an RC-scale accessory for electric on-road models only.

Installation follows standard differential service practice: remove the transmission housing, extract the existing diff assembly, transfer or replace internal components as needed, and reassemble with correct shims and torque. The aluminum housing requires the same care as other metal hop-ups to avoid over-tightening small hex screws during reassembly.

Tuning use and maintenance are typical for ball differentials: alter ball preload, change diff lube viscosity, and inspect balls and races for wear to modify traction and steering response. Periodic cleaning and lubrication of the internals will keep engagement consistent and reduce premature wear.