This high-quality 45T GP6 Main Diff Gear is the perfect part to carry in your RC tool box.Features:Machined from strong steel for long-lasting durability and consistent performance - Straight-cut tooth profile - 45 precision manufactured gear teeth for smooth operation in extreme RC conditions - GP6 (gear profile) configuration to be used with GP6 Main Input Gear - Fits on #AR310433Includes:1 x Main Diff Gear 45T Straight Cut GP6Requires:To be paired with #ARA311018 To be used with #AR310433