ARRMA GRANITE GROM MEGA GPM MGG1230F 30/12T Carbon Steel Diff Gear Set  [MGG1230F]

Carbon Steel Differential Upgrade for ARRMA Trucks

Replace the stock unit on your ARRMA GRANITE GROM MEGA with the GPM MGG1230F carbon steel differential gear set. The spiral cut ring gear profile helps balance torque delivery and improves transmission efficiency for more composed cornering and reduced drivetrain feedback.

Packing includes

• Diff Bevel Gear 30T - 1pcs
• Front Pinion Gear 12T - 1pcs

Original Name / Part No:

• ARA311177
• ARA311182

Spiral Cut Gear Benefits

Spiral cut teeth mesh more gradually than straight cut designs, which lowers operational noise and vibration. That smoother engagement helps protect mating parts and keeps your vehicle quieter on runs.

Better Power Transfer

The spiral geometry increases contact across the tooth flank, spreading loads more evenly and cutting energy loss in the drivetrain. This results in more effective acceleration and improved traction on inclines.

Surface Hardening for Longevity

A surface hardening and blackening finish increases wear resistance and surface toughness, extending service life under repeated loads and helping the gears resist premature wear.