ARRMA MINI KRATON 3S Front/Rear Differential Outdrive by GPM MAKM039SA  [MAKM039SA]

Nickel alloy diff outdrive overview

This aftermarket outdrive set is manufactured for ARRMA 1/16 MINI KRATON 3S models and is intended for RC-scale differential use only. Machined from nickel alloy, the parts target improved wear resistance in front or rear differential locations while remaining compatible with driveshafts that use 2mm pins. The components are sold as a matched pair suitable for replacing the listed factory part numbers.

In practical setup terms, swapping to stiffer outdrives reduces torsional flex between the differential and driveshaft, helping to preserve drivetrain alignment under load. Fitment is straightforward for model maintenance: remove the differential housing cover, extract the worn outdrives, and press the nickel alloy units onto the differential output with appropriate retention pins. Verify pin engagement and rotate the assembly by hand before reassembling to ensure smooth operation.

The parts are strictly for hobby RC vehicle use, intended to replace ARA311193 and ARA-3294 service items on compatible ARRMA MINI KRATON 3S platforms.

For technicians tuning the 1/16 MINI KRATON 3S drivetrain, these nickel alloy outdrives offer a direct replacement option that focuses on durability and consistent power transfer across front and rear differentials.