Xtra Speed Two Speed Transmission Conversion Kit For AXIAL SCX10 II #XS-SCX230083 Go to amazon.com Related posts 9 best scx10 ii upgrades FeatureFor: Axial SCX10 IIMaterial: SteelColor: BlackInclude: Gears (4 pcs) , Tie Rod (1 pc) , Bearings (4 pcs) , Mounting Hardware (1 pack) DescriptionSteel two speed transmission upgrade for your SCX10 II! Comes with gear shift rod for easy installation!