Features: Enhances your remote control experience with the 6780 complete center differential Kit, crafted from high strength metal to ensure durability and impact resistance, perfect for tackling complex terrains and intense driving conditions. Perfect for diverses environment such as challenging offroads terrains like sand, mud, or rock, as well as racetracks where superior handling provides a competitive edges, and everyday play in open space for smooth, fast ride. Precise engineered components ensure exact fitments, reducing wear and extending lifespans, while a optimized heat dissipation design maintains optimally performances under heavy loads, preventing overheating damage. The central differential can absorb the vibration of the transmission shafts, thus improving durability and distributing power to all four wheel for amazing acceleration performances. Fin-shaped aluminum shell help to dissipate heat, and its strong 54T large teeth and 32P steel gear provide maximumly durability. The sealed differential have been completely assembled, and silicone oil with a thickness of 1 million pounds have been injected in advance to prevent the front wheel from deflation and expansion. The center differential requires a 32P pinions. Specifications: Component:Metal Size:Approx.44.7x76mm/1.76x2.99inch Color:Silver Suitable for: 4X4 Brushless 4X4 Package Includes: 1 Set Central Differential Kit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.