Arrowmax AM-931002 1/10 F1 Geardiff Set — 1/10 F1 Gear Differential Replacement  [AM-931002]

1/10 F1 geardiff technical overview

The Arrowmax AM-931002 1/10 F1 Geardiff Set is a scale gear-type differential designed as a direct replacement for ball differentials in 1/10 F1 pan cars. It installs into existing differential housings that accept a 6.35mm hollow shaft and is intended to provide a consistent mechanical differential action without the service cycle typical of ball-differential tuning.

The set uses a hollow steel shaft with a 6.35mm diameter for the driveline interface, matching the common layout found on many 1/10 F1 chassis. No additional adaptor parts are required for installations that already use a compatible shaft size, and the kit replaces the ball-differential assembly directly in those setups.

From a setup perspective the geardiff changes how the car distributes drive torque through cornering compared with a ball-type unit: it delivers predictable mechanical engagement and reduces the need for frequent rebuilds or shimming. That makes it suitable for drivers who prioritise consistent lap-to-lap behaviour during practice and race preparation on typical F1 tracks.

Use this geardiff where a maintenance-reduced, mechanically consistent differential is preferred; verify shaft diameter and housing fit before installation and adjust drivetrain alignment as needed to retain smooth operation.