The FONZON Front/Rear Differential is precision-engineered to withstand extreme torque and harsh terrain, delivering consistent power transfer and drivetrain reliability for your ARRMA 6S vehicle.

Assembled and tested at the factory, it's ready to drop in and perform right out of the box.

Feature Focus: Choosing the Right Spur and Pinion Gear Ratio for Your ARRMA 6S Platform

43/10T — 4.30
The most versatile and widely used gear ratio for multiple ARRMA 6S factory-standard setups. Offers excellent compatibility and balanced performance.

43/12T — 3.58
A mid-range gear ratio that balances top speed and torque, ideal for users who want to fine-tune their vehicle’s performance.

43/13T — 3.31
A high-speed gear ratio designed to improve RPM efficiency and wheel speed response. Perfect for lightweight, high-speed models like the TYPHON.

35/8T — 4.38
An extreme acceleration and torque gear ratio suited for heavy-duty off-road or explosive launch scenarios, such as stunt and big-foot vehicles like the OUTCAST.

This guide provides recommended differential gear ratios for the ARRMA 6S platform to help you select the best setup for your driving style and vehicle type.

What's in the box?

• (1) Front or Rear Differential Assembly

• (1) Matched Bevel Gear (Input Gear)

• (1) Shim Set for gear mesh fine-tuning

• (1) LSD Clutch Plate Set

Compatibility

• Kraton 6S

• Outcast 6S

• Notorious 6S

• Talion 6S

• Mojave 6S

• Infraction / Felony 6S

• Fireteam 6S

• Typhon 6S