ARRMA Differential Outdrive for 1/16 MOJAVE GROM and 1/14 TYPHON - MGM039S by GPM  [MGM039S]

Replacement outdrive tailored for ARRMA GROM/TYPHON diffs

The MGM039S outdrive is an aftermarket RC component intended for ARRMA compact desert truck and buggy differential systems. Forged from medium carbon steel and precision machined, it strengthens the contact surfaces between the outdrive and CVD or dogbone shafts to help reduce wear during rotation.

It installs into standard diff housings found on the compatible ARRMA models and serves as the coupling between rotating drive shafts and the diff internals. This is a direct swap for factory part number ARA311193; always compare with the original part for correct orientation and clearance. Use this part when prioritizing long-term durability while preserving stock geometry.