?Fits For?:The 50T Center Differential Upgrades Part for Arrma 1/7 Felony 6S BLX Fireteam 6S BLX Infraction 6S BLX Mojave 6S BLX, 1/8 Kraton 6S BLX Notorious 6S BLX Outcast 6S BLX Talion 6S BLX Typhon 6S BLX. | ?High quality material?: Differential Made of high-quality steel material, Hard anodic oxidation and anti-rust treatment on gear surface, long service life for these gears. | ?More Durable?:The upgrades part is durable enough,improves the overall performance of the rc car.Specially designed strengthening cut-outs for increased crash resistance. | ?Easy to Install?:great for replace the old or broken part.Increase overall performance and durability of your RC car. | ?Long-lasting Performance?: The rc car upgrades parts highly increase the strength and precision.