Hot Racing - Steel Helical Differential Ring/Pinion Overdrive, 12 Tooth & 33 Tooth, for Traxxas TRX4 Radios & Accessories That means rocks thrown from

That means rocks thrown from the front tires (or from that guy you're trying to pass) won't ever hit your shock shafts

and the D941TW boasts a full metal case

(7) 12x18x4

and an advanced microprocessor that improves vehicle control

AA Alkaline batteries (4 required)

Hot Racing - Steel Helical Differential Ring/Pinion Overdrive, 12 Tooth & 33 Tooth, for Traxxas TRX4 Radios & Accessories That means rocks thrown fromHot 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