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

Compact design. Heavy-duty performance. The FONZON Rear Differential is precision-built to handle the demands of high-speed desert and rock racing. Featuring a blend of CNC-machined and powder metallurgy components, this differential delivers smooth helical gear engagement, consistent power delivery, and long-lasting durability—all in a compact, race-ready unit.

Features:

• Powder metallurgy planetary gears for reliable strength in a compact form
• All-helical gear design for smoother, quieter operation under load
• Metal diff case (center housing) made from 7075-T6 aluminum alloy for high rigidity and low weight
• 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 impact resistance and longevity（steel makeup#4340）
• Grade 12.9 gold-colored, titanium-coated screws for corrosion resistance and secure assembly
• Fully assembled and ready to install

What's in the box?

• 1 × Rear 40T Differential Assembly

• 1 × Rear 14T Drive Bevel Gear

Compatibility

• Direct fit for the rear differential mounting position of the LOSI 1/10 REY platform.

  • (Confirm gear mesh and axle alignment before installation.)