Maximize your RC’s power and durability with the Fonzon Arrma Grom Differential — engineered with steel and powder metallurgy gears in a 7075-T6 aluminum case for extreme performance out of the box.

About the Full Metal Differential

High-Performance & Durability

The Fonzon Arrma Grom 7075-T6 Aluminum Differential Set delivers unmatched strength and performance for high-demand RC vehicles. CNC-machined nickel-chromium alloy steel and powder metallurgy gears, including drive bevel and planetary gears, provide smooth, reliable power transfer even under extreme torque. The 7075-T6 aluminum alloy metal differential case offers an optimal strength-to-weight ratio with a polished finish, while pre-filled 3K cst differential oil, high-quality sealed adapter cup bearings, and corrosion-resistant titanium-coated screws ensure long-lasting, efficient operation. Fully factory-assembled and ready to install, this differential set boosts drivetrain durability and performance right out of the box.

Features:

• CNC-machined nickel-chromium alloy steel gears for strength
• Powder metallurgy drive bevel, planetary, and ring gears for durability
• 7075-T6 aluminum alloy metal differential case for optimal strength-to-weight ratio
• Pre-filled with 3K cst differential oil for smooth operation
• Fully factory-assembled and ready to install
• High-quality sealed adapter cup bearings ensure efficient performance
• Grade 12.9 corrosion-resistant, titanium-coated screws for long-lasting reliability
• Precision-engineered to handle extreme torque and harsh terrain