Hot Racing - Steel Helical Differential Ring/Pinion Overdrive, 12 Tooth & 33 Tooth, for Traxxas TRX4 Radios & Accessories AA Alkaline batteries (4 required)

AA Alkaline batteries (4 required)

RPM Rear A-arms are more than 7 grams lighter per A-arm than their stock counterparts

(7) 12x18x4

This 4000KV motor has loads of power

8mm Steel Ball (10)

Hot Racing - Steel Helical Differential Ring/Pinion Overdrive, 12 Tooth & 33 Tooth, for Traxxas TRX4 Radios & Accessories AA Alkaline batteries (4 required)Hot Racing steel helical spiral overdrive 33T 12T gear set for 1 10 Traxxas TRX 4, comes with a 33 tooth spiral cut ring gear and 12 tooth spiral cut pinion gear. Replaces Traxxas 8287 Features: Precision machined helical spiral cut gears offer inherently greater strength and smooth operation than the factory Straight cut bevel gears High carbon steel construction Less vibration, less noise, less wear then stock straight cut bevel gears 33T 12T