Tamiya 51649 TRF420 Lightweight Gear Differential Kit  [51649]

Precision Differential Upgrade for TRF Chassis

The Tamiya TRF420 Gear Differential Unit Set from the Tamiya Spare Parts Series is aimed at hobbyists who want a tidy, serviceable diff solution. It helps balance stability and responsiveness across common TRF setups.

Main Benefits of the TRF420 Differential

• Lightweight Design: Reworked pulley and case trim roughly 1.5g from the assembly, aiding nimble steering and reduced inertia.
• Enhanced Oil-Tightness: Better sealing reduces leakage and keeps diff action consistent during a run.
• Compatibility: Designed to fit TRF420, TRF419, and TA07 models for broad spare part use.

Setup Notes for TRF419 and TA07 Chassis

On TRF419 and TA07 installs adjust bearing position with shims to prevent preload. Use the Tamiya RC 10mm Shim Set (Item 53588) where recommended to ensure correct alignment.