ARRMA Gorgon 7075-T6 differential case and idler gear MGO1200A by GPM  [MGO1200A]

Mega-series 7075 diff case and idler gear

This aftermarket assembly replaces ARRMA part ARA311095 and is supplied as an RC-scale differential case and idler gear set built for ARRMA 1/10 monster and stadium platforms. The kit components are CNC-machined from 7075-T6 aluminum and finished with a hard anodize to resist wear while keeping reliable gear mesh under typical hobby driving loads. It installs as a direct-fit replacement where the original mounting interfaces and 0.8M gear pitch are retained.

The set is intended to improve gearbox durability and deliver repeatable gear engagement rather than to change final drive ratios. In everyday tuning it helps reduce wear in high-stress operation and gives a firmer foundation for setup adjustments elsewhere in the drivetrain. Installation follows the chassis differential layout and uses the supplied bearings and fasteners to restore a complete unit. Model reference: MGO1200A for identification when ordering replacements.

For hobbyists maintaining ARRMA Gorgon and related 1/10 platforms, the MGO1200A replacement provides a like-for-like 7075 alloy diff case and idler gear set to restore drivetrain durability and consistent gear engagement; follow the vehicle service manual for torque and assembly sequence when installing the supplied bearings and fasteners.