HPI Drive Gear Set

Gear. This optional differential gear is an excellent way to reduce rotating weight and add strength to your HPI Sport 3's drivetrain. Constructed from CNC machined aluminum and hard anodized for durability ...

Gears for the HPI E10 Drifter. A lower tooth count on the pinion gear will give you more acceleration, while a higher tooth count will give you extra top speed. Have a ...

differential washers for the HPI Hellfire Monster Truck. These washers are used inside the front, center and rear differentials between the bevel gear and the differential housing. These can wear out, it ...

Shaft, and is intended for use with the HPI Vorza Flux HP. This drive shaft (dog bone) is installed between the center differential and the front pinion gear. It is held in ...