6PC: Alloy Differential + Reduction Gear + Driveshaft Assembly. 4PC: Driveshaft Assembly. Upgraded Alloy Differential: Enhances durability and performance for smoother power transmission in RC models.
6pc 4pc Alloy Differential Gear Set Compatible with For WLtoys RC Car Models
Upgraded 6pc Transmission Shaft Kit with Alloy Differential Gear Set for WLtoys
1 18 Scale Metal Alloy Differential Gear Set for RC Car Models 9300 9301 9302
Transmission Shaft and Alloy Differential Gear Set for For WLtoys 124019 124018