ARRMA Mini Kraton 3S Front Differential 12/30T 20CrMnTi+7075 by GPM MAKM1230FS  [MAKM1230FS]

Front differential for Mini Kraton 3S

This is a replacement front differential assembly produced for ARRMA Mini Kraton 3S, supplied by GPM as MAKM1230FS. The assembly is an RC-scale accessory built from 20CrMnTi steel for internal gears and 7075-T6 aluminum for the housing components, using spiral-cut ring gearing with a 30T large bevel and a 12T input bevel at 0.8 module. The unit is fully assembled at delivery and includes bearings for immediate fitment.

The 12/30T gearing, 0.8 module, and design suit driveshafts that use 2 mm pins; the large and small bevel gears have undergone a hardened black surface treatment to improve wear resistance under high load. This part is intended to directly replace the factory items ARA-3294 and ARA-2672 in compatible ARRMA Mini Kraton 3S kits.

Note that differential oil is not included. GPM recommends adding silicone diff oil to tune traction and coupling: front differential around 50K CST, rear around 30K CST, and center differentials at 500K CST or 1000K CST depending on handling preference. Fasteners and small accessories arrive pre-assembled where noted, and using thread locker on screws is advised to maintain stability during high-load running.

For Mini Kraton 3S owners looking to restore or upgrade front-end durability, this GPM front differential offers hardened gearing and alloy support components sized for the ARRMA 1/16 platform; plan to add your chosen diff oil and secure fasteners with thread locker during installation.