Its strong but hard to get the mesh right with the fixed motor mounting holes, especially when changing gearing from stock. Only select few combinations of pinion and spur tooth counts will work and even on the manufacturers website theres no indication as to what fits. So far on 57t spur pinions with 15t and 20t work well. The stock 18t doesnt mesh very well. Prepare to strip gears and rexperience restrictions when gearing your vehicle.
