Description: Compatibility: RC Car Parts fits for 99S MN98 MN168 MN82 LC79 MN78 1/12 scale RC Car, making it a sturdy upgrade or replacement partMaterial: Upgrade Parts are made of Aluminum Iron, which is strong and wear resistant, providing your RC car with long term reliabilityEasy to Install: Upgrade Accessories require self assembly, the accessories are simply designed and can be completed in a few minutes for easy installationExact Size: 1/12 RC Car Center Wave Box Assembly will fit your vehicle seamlessly without any modificationsPractical: RC Car Center Gearbox is designed to improves the overall performance of RC Car,Modified 370 motor Size Chart: Gearbox cover 4.5cmx3.17cmx3.06cm/1.77inchx1.25inchx1.20inchMotor mounting 0.256cmx2.4cm/0.10inchx0.94inchBearing 0.4cmx0.7cmx0.25cm/0.16inchx0.28inchx0.10inch Package Includes: 1 set of gearbox cover1 set of motor fixing seat2 bearings1 set of gearbox gear1 set screws Note: Please allow slightly errors due to manual measurement and different .