Maximize your Arrma Grom’s power and durability with the Fonzon 7075-T6 Aluminum Assembled Front/Rear Differential set — engineered with steel and powder-metallurgy gears in a 7075-T6 aluminum case for extreme performance right out of the box. CNC-machined nickel-chromium alloy steel and powder-metallurgy gears (drive bevel and planetary) provide smooth, reliable power transfer even under extreme torque.
The 7075-T6 aluminum case offers an optimal strength-to-weight ratio with a polished finish, while pre-filled 3K cst differential oil, sealed adapter-cup bearings, and corrosion-resistant titanium-coated screws ensure long-lasting, efficient operation. Fully factory-assembled and ready to install.