Description
Differential Overview:
Unleash maximum power and reliability with the Fonzon Arrma 1/10 4×4 differential — engineered with steel gears and a 7075-T6 aluminum case for extreme RC performance right out of the box.
About the Full Metal Differential
High-Performance & Durability
The Fonzon Arrma 1/10 4×4 Front or Rear Differential delivers extreme durability and precision for high-performance RC vehicles. CNC-machined nickel-chromium alloy steel gears, including helical bevel gears, ensure smooth and efficient power transfer, while the 7075-T6 aluminum alloy metal differential case offers an optimal strength-to-weight ratio with a polished finish. Pre-filled with 10W cst differential oil, equipped with corrosion-resistant titanium-coated screws, and high-quality sealed adapter cup bearings, this fully factory-assembled differential is ready to install, providing consistent drivetrain performance on harsh terrain right out of the box.
Features:
- CNC-machined nickel-chromium alloy steel gears for durability
- Helical bevel gear design for smooth power transfer
- 7075-T6 aluminum alloy metal differential case for strength and light weight
- Pre-filled with 10W cst differential oil
- Fully factory-assembled and ready to install
- Grade 12.9 gold-colored, titanium-coated, corrosion-resistant screws
- Nickel-chromium alloy steel drive cups for reliable operation
- High-quality sealed adapter cup bearings for efficient performance





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