The HS-5065MG High Performance Micro Servo features Hitec's digital

Gearbox halves (front and rear) and screws

Direction of Rotation

These are Kadee 33" Diameter Smooth Freight Car Wheel Sets

Silicone grease

Traxxas 5398 OptiDrive Electronic Shift Module Revo T-Maxx Revo Parts The HS-5065MG High Performance MicroTraxxas OptiDrive Electric Shift Module Revo This is the replacement Optidrive Electronic Shifting Module for the Revo. This is the device that prevents reverse shifting while the vehicle is in motion. Features:< Pre installed Futaba J connectors Includes: One Optidrive module Fits: Traxxas Revo 3. 3 Traxxas T Maxx 3. 3