Axial SCX10 2-speed gear set
Coming from Axial and made for the SCX10 II is a 2-speed gear set. The kit allows to upgrade the 31439 SCX10 transmission into a Hi/Lo gearbox. Gears used include a 18T machined gear, 26T/28T high speed gear set, and 28T/36T 2-speed shift gears. Also part of the conversion are all needed transmission internals, shifter forks and a mini servo saver, springs and a linkage set.
Source: Axial [axialracing.com]