See vehicle model compatibility in comments below

Green Aluminum Hollow Ball Set (20) for Axial AX10

) are not includedFeatures:

Parts for attachment are included

At 10mm thick

Hot Racing - Aluminum Center One-Way Differ ential, for 4X4 Slash ASC90044 See vehicle model compatibility inHot Racing center one way differential drives the front and rear wheels under forward acceleration, but allows the front to 'freewheel' under braking, decelerating, and reversing. A center one way allows the vehicle to be 'whipped' around during braking. This item requires a spur gear that's for a center gear differential. If the vehicle uses a slipper, then the spur gear will not work and a spur gear designed for a center gear differential will need