Specifications:
Pinion gear: 13T
Ring Gear: 26T
Gear Pitch: Mod .4

What it Fits:
- CR18P Evo Juice Up: Front axle replacement gears or can be used to increase gear ratio in the rear to match the front. 
- CR18P V3 Rushmore and Trail Hunter: Front axle replacement gears or can be used to increase gear ratio in the rear to match the front. 
- CR18P Arktos: This is an option part for the Arktos. If you're looking for higher gear ratio in all three axles this is an option for you. Note, highly recommend to not use as an overdrive in just the front axle. This combination will create too much strain on the power system. 
- CR18P Evo V2: