Tamiya RC Spare Parts 1649 TRF420 Gear Differential Set 51649 No. SP.1649

This is the gear differential set that comes standard on the TRF420 chassis. By keeping the 37T drive ratio the same while making the differential case as thin as possible, we achieved a weight reduction of approximately 1.5g. The gears, differential cups, gaskets, and other parts inside the gear differential can be directly replaced with those from the TRF419 series.