Steel Helical Diff Ring Pinion Underdrive Gear Set for Traxxas TRX-4 (HRATRXF9510)

Steel Helical Differential Ring and Pinion Underdrive Gear Set for Traxxas TRX-4 is an aftermarket upgrade that changes the drive gearing to underdrive the wheels, delivering enhanced control at slower speeds and improved crawling performance on TRX-4 models.

Crafted from steel with helical gears for smoother engagement and greater durability, this gear set replaces the differential’s ring and pinion gears. It’s designed for straightforward installation in the TRX-4’s differential, providing a more predictable feel on technical terrain and steadier throttle response during crawling.