Features 1.REPLACEMENT PARTS: This kit can be used to replace the old or damaged front or rear differential gear box, suitable for ARRMA 1/7 1/8 series. 2.ALUMINUM ALLOY: Made of excellent aluminum alloy, resistant to high temperature and bending, can improve durability under extreme load. 3.STANDARD SIZE: The diameter of the gear box is 29mm, and the standard size is convenient for installation and removal, simple and practical. 4.LIGHT WEIGHT: The gear box is small and lightweight, does not increase the burden of the remote control car, has a stable and firm structure. 5.EASY TO INSTALL: Equipped with gaskets, rubber gaskets, screws, sealing rings, gears and other parts, the gear box is easy to install and replace. Specification Item Type: Differential Gear Box Case Main Material: Aluminum Alloy Product Color: Red Gear Box Diameter: Approx. 29mm / 1.1in Applicable Model: For ARRMA 1/7 1/8 series model Package List 1 Set Gear Box (2 Accessories) 4 x Gaskets 4 x Rubber Gaskets 8 x Screws 2 x Sealing Rings 2 x Latches 6 x Gears 10 x Accessories