This is the Fonzon 40/14T Full Metal Front Diff Set - 1/10 Losi Baja Rey

Precision meets power. The FONZON High-Performance Differential is engineered for demanding RC applications, combining CNC-machined components with advanced powder metallurgy for optimal strength, efficiency, and longevity. With helical gearing throughout, it delivers smoother operation, quieter engagement, and maximum drivetrain stability.

Features:

• Powder metallurgy planetary gears for compact strength and durability
• All helical gear design for smoother, quieter power transfer under load
• Metal diff case (center housing) crafted from 7075-T6 aluminum alloy – strong and lightweight
• CNC-machined nickel-chromium alloy steel bevel gear (helical teeth)（steel makeup#4340）
• CNC-machined nickel-chromium alloy steel drive bevel gear (helical teeth)（steel makeup#4340）
• Nickel-chromium alloy steel drive cups for maximum impact resistance
• Grade 12.9 gold-colored, corrosion-resistant screws with titanium coating
• Factory pre-filled with 100K cSt differential oil
• Fully assembled and ready to install

What's in the box?

• (1) 40T Front Differential Assembly

• (1) 14T Front Drive Bevel Gear

Compatibility

• The latest BAJA REY 2.0 models (LOS03046 and LOS03049) are compatible with this differential for both front and rear positions.

  • Other REY platform models support front installation only.