Tamiya 51649 TRF420 Race-Oriented Gear Differential Assembly  [51649]

Tamiya TRF420 Differential Unit for Consistent Cornering

The Tamiya TRF420 Gear Differential Unit Set in the Tamiya Spare Parts line helps refine cornering consistency and balance for competitive RC setups. It is aimed at builders who want dependable diff behaviour without complex mods.

Why This Differential Matters

• Lightweight Design: The pulley and case have been revised to cut about 1.5g, reducing unsprung and rotating weight for sharper transitions.
• Enhanced Oil-Tightness: Upgraded sealing limits oil loss so diff characteristics remain stable between services.
• Compatibility: Works with TRF420, TRF419, and TA07 platforms, making it a versatile spare part for several chassis types.

Installation Tips for TRF419 and TA07 Owners

For TRF419 and TA07 models you will need to add shims to set the bearing clearance correctly. The Tamiya RC 10mm Shim Set (Item 53588) is suggested to get the bearings aligned and prevent binding.