ARA311070 Spool Set, 39T Mod 1

Arrma Spool Set, 39T Mod 1 and Arrma Spool Set, 39T Mod 1 refers to the same precision‑made center spool assembly used in certain 1/7 scale ARRMA radio‑controlled vehicles. This spool replaces a traditional differential in the drivetrain and provides direct, solid drive from the center driveshaft to the front and rear output shafts, which enhances power transfer for high‑speed on‑road or smooth surface use. The unit has 39 teeth with a Mod 1 tooth profile and is assembled and ready to install. It is constructed to handle demanding power without excessive wear, but it’s generally not recommended for off‑road applications where a true differential would better accommodate wheel speed differences during cornering. 

Includes

1 x Assembled Center Spool

Features

• Precision manufactured for smooth and long-lasting performance
• Tough construction for consistent power transfer and durable operation
• Not recommended for off-road use