【What you get】: 2pcs High Quality Upgraded Metal Assembled Differential, Front and Rear. The Diff Set Upgrades Parts is the Replacement for the original parts # ARA311177 # ARA311177V2. 【Compatible with】: 1. 1/14 MOJAVE GROM MEGA 380 Brushed 4X4 Small Scale Desert Truck RTR; 2. 1/12 Losi AWD RC Racecar; 3. 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR; 4. TYPHON GROM MEGA 380 Brushed 4X4 Small Scale Buggy RTR. 【Effectively improve the performance】: Our upgraded metal differential reduces the chance of gear virtual position and sweeping, so that your RC car runs smoothly. 【High-quality Material】: Made of High-quality metal material, more durable and wear-resistant, high strength, multiple colours, more exquisite appearance for you to choose. Our products can improve the performance of your RC car and add more fun to your RC experience. 【Easy to Install】: Easy to install, great for replace the old or broken part. Increase overall performance and durability of your RC car. 【Compatible with】: 1. 1/14 MOJAVE GROM MEGA 380 Brushed 4X4 Small Scale Desert Truck RTR; 2. 1/12 Losi AWD RC Racecar; 3. 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR; 4. TYPHON GROM MEGA 380 Brushed 4X4 Small Scale Buggy RTR.