TRAXXAS XRT Spur & Input Gear Kit XRT3320S by GPM  [XRT3320S]

Spur and input gear upgrade compatible with TRAXXAS XRT 8S

This kit is a scale RC drivetrain replacement that groups a 33T spur gear and a 20T transmission input pinion with a rigid aluminum mount and bearing support. The kit uses 20CrMnTi steel for the main gears and an aluminum 7075 fixed mount to create a three-point support layout intended to improve transmission stability compared with common two-point mounts.

Installation guidance: the design integrates the motor gear and input shaft to remove the separate 2.5mm locating pin used on some factory parts, and the kit includes shims and a bearing to help set endplay and mesh. The spur gear uses a 1.5 module with a D-shaped motor bore and a 14mm tooth face width, while the input gear uses a 1.0 module with 20 teeth.

For hobbyists tuning drivetrain durability or replacing worn plastic gears on TRAXXAS 1/6 and 1/5 platforms listed above, this steel gear set provides a higher-hardness alternative and includes the hardware to set mesh and shaft support; verify fit against the excluded model TRAXXAS 1/5 X-Maxx 8S Monster Truck-77096-4 before installation.