ARRMA Diff Case Set, 37T Main Gear, BLX 3S for Big Rock, Granite, Senton & Typhon (ARAC4022)
In Stock
The Arrma Differential Case Set 37T Main Gear: BLX 3S provides a durable direct replacement for your factory-supplied RC Car differential assembly. Engineered to withstand extreme torque from 3S BLX brushless power systems, this replacement set ensures consistent performance during high-speed off-road action.
Keep your high-performance RC vehicle running at peak strength with the genuine Arrma Differential Case Set 37T Main Gear: BLX 3S. Molded from tough composite material, this differential housing resists deformation and wear under heavy loads and harsh landings. The precision-manufactured 37-tooth main gear configuration guarantees smooth gear mesh and efficient power transfer to your wheels. Featuring an integrated ring gear and housing design, this differential gear set offers increased structural integrity and a dependable diff seal to prevent fluid leaks under aggressive driving conditions.
Is the Arrma Differential Case Set 37T Main Gear: BLX 3S compatible with brushless power systems?
Yes, the Arrma Differential Case Set 37T Main Gear: BLX 3S is molded from heavy-duty composite material specifically engineered to handle high torque from 3S BLX brushless motors.
What parts are included with the Arrma Differential Case Set 37T Main Gear: BLX 3S?
The package includes one integrated 37-tooth ring gear diff case housing and one matching diff case cap.
Why does the Arrma Differential Case Set 37T Main Gear: BLX 3S feature an integrated ring gear?
Integrating the main ring gear directly into the differential case increases structural rigidity, minimizes gear deflection under heavy loads, and simplifies routine maintenance.







































