This is an optional Traxxas "Spiral Cut" Rear Machined Ring and Pinion Gear. These gears are machined for the ultimate precision and feature a spiral cut on the teeth, creating slightly larger surface area and increased durability.
These gears cannot be used with the older TRA6879 gears!
NOTE: These gears are for use in the rear gearbox only!
This product was added to our catalog on February 21, 2018