Damarble, you are correct. Frankly, any axle within reason will work fine so long as the person with the right foot on the go pedal is somewhat sane. Even a 200 HP 4bt isn't going to break the axle under normal circumstances. Try to show off to the buddies and you might be picking up piece of differentials or twisted drive shafts. That low end torque can work wonders with those parts.