This high quality 10T Spiral Main Input Gear is the perfect part to carry in your RC tool box.Features:Constructed from tough steel material for long-lasting durability and consistent performance - Wide tooth profile increases torque handling capabilities  - Precision manufactured gear teeth for smooth operation in extreme RC conditions - GP4 configuration to be used with GP4 Main Diff GearIncludes:1 x Main Input Gear 10T Spiral Cut GP4 5mmRequires:To be paired with #ARA310980