GPM MONSTER TRUCK Harden Steel #45 Front Differential Ring Gear & Pinion Gear – 2pc set #TXMS1200FS-BK

Improve the transmission of power in the differential case.

Major advantages of upgrading to this part/product :
1. The material is upgraded to harden steel #45 to make it more durable and sturdy to use.
2. Reduce the gap in between gears in order for the gears to run smoother and more powerful.