6PC: Alloy Differential + Reduction Gear + Driveshaft Assembly. 4PC: Driveshaft Assembly. Upgraded Alloy Differential: Enhances durability and performance for smoother power transmission in RC models.
Alloy Differential Set Transmission Shaft 6pc 4pc for For WLtoys RC Car Models
Alloy Differential Gear Set Transmission Shaft Kit 6pc for WLtoys RC Upgrade
