Standard case is fine for up to 500 HP.

 

OK Twister, I took out your screwups. Someone tell me about this "N" case. Does it have more nickel in the casting to make it stronger or something?

 

the "n" case is made entirely out of nodular iron which is much stronger and provides for more flex then the standard case which apparently has a history of cracking under extreme pressure. Again I think I'll be ok since I won't have more than 500 horsepower but I wanted to be sure. Also rebuilt or new traction lock differential, I haven't heard anything about that one yet!