The GPM TET101S rear differential locker is specified for the Traxxas Teton to improve torque distribution and drivetrain integrity. The straight axis design substitutes the stock gear differential to reduce drivetrain movement and provide a firmer lockup under load. Hardened steel elements give the assembly high wear resistance, and the locking screw retention prevents unintended loosening during extended or heavy use. This product is aimed at enthusiasts looking for a durable, performance-oriented rear locker that installs with minimal modification.