yeah man, O2J’s like to shear gears when traction happens, as well as break axles. you could buy the Raxles for it, and not break them, but then youve still got gears to worry about. the O2M is just a much stronger unit, bigger diff, bigger gears, bigger clutch, better sliders/shift collars, better release bearing design. and IMO better gearing with a BT car, keeps the car in the power easier. and in 6th still can return awesome MPG.